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Questions and Answers
Gabrielle pulls a toy car 10 meters with a force of 200N. How much work has she done?
Gabrielle pulls a toy car 10 meters with a force of 200N. How much work has she done?
2000 j
Jack drags a shopping bag for 1000 meters with a force of 150N. How much work was done?
Jack drags a shopping bag for 1000 meters with a force of 150N. How much work was done?
150,000j
. A 5kg cat is lifted 2m into the air. How much GPE does it gain?
(Round gravity to 10 instead of 9.8)
. A 5kg cat is lifted 2m into the air. How much GPE does it gain? (Round gravity to 10 instead of 9.8)
100 j
A larger box with a mass of 70kg is lifted 5m in to the air. How much GPE does it gain?
(Round gravity to 10 instead of 9.8)
A larger box with a mass of 70kg is lifted 5m in to the air. How much GPE does it gain? (Round gravity to 10 instead of 9.8)
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An angry bull with a mass of 700kg runs at 10 m/s. How much kinetic energy does it have?
An angry bull with a mass of 700kg runs at 10 m/s. How much kinetic energy does it have?
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A waddling armadillo of mass 6kg moves at 5 m/s. How much kinetic energy does it have?
A waddling armadillo of mass 6kg moves at 5 m/s. How much kinetic energy does it have?
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Look at the diagram. Calculate the net force. Include the net force and the direction (left, right, up, or down) in your answer.
Look at the diagram. Calculate the net force. Include the net force and the direction (left, right, up, or down) in your answer.
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Look at the diagram. Calculate the net force. Include the net force and the direction (left, right, up, or down) in your answer.
Look at the diagram. Calculate the net force. Include the net force and the direction (left, right, up, or down) in your answer.
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Friction is a contact force.
Friction is a contact force.
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Magnetism is a contact force.
Magnetism is a contact force.
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Gravity is a contact force.
Gravity is a contact force.
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Tension is a contact force.
Tension is a contact force.
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Air resistance is a contact force.
Air resistance is a contact force.
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Light is a type of kinetic energy.
Light is a type of kinetic energy.
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Gravitational energy is a type of kinetic energy.
Gravitational energy is a type of kinetic energy.
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Elastic is a type of kinetic energy.
Elastic is a type of kinetic energy.
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Thermal energy is a type of kinetic energy.
Thermal energy is a type of kinetic energy.
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Using the 5 senses to help learn more about something (sight, hearing, tasting, feeling, and smelling)
Using the 5 senses to help learn more about something (sight, hearing, tasting, feeling, and smelling)
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Forming an idea of why something happened in the past based on observations
Forming an idea of why something happened in the past based on observations
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Forming an idea of what will happen in the future based on observations
Forming an idea of what will happen in the future based on observations
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Organizing or separating things by how they are alike or different
Organizing or separating things by how they are alike or different
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Finding the size, mass, volume, distance, weight, or temperature of anything. Involves numbers and units
Finding the size, mass, volume, distance, weight, or temperature of anything. Involves numbers and units
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Conducting controlled test that will help determine if a hypothesis is correct.
Conducting controlled test that will help determine if a hypothesis is correct.
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Looking at the data and finding patterns
Looking at the data and finding patterns
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Using the information gained to try to explain or understand something. Figuring out what the patterns mean.
Using the information gained to try to explain or understand something. Figuring out what the patterns mean.
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The force that opposes motion between objects that are in contact.
The force that opposes motion between objects that are in contact.
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An object's resistance to changes in motion.
An object's resistance to changes in motion.
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How fast an object is traveling. Calculated by dividing distance by time.
How fast an object is traveling. Calculated by dividing distance by time.
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How fast an object is traveling and the direction the object is traveling.
How fast an object is traveling and the direction the object is traveling.
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Any change in an object's speed or direction. (change in velocity)
Any change in an object's speed or direction. (change in velocity)
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A change in an object's position.
A change in an object's position.
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Models are used to study things that are too big, too small, too distant, or too complicated to study through direct observations. Which is NOT a model?
Models are used to study things that are too big, too small, too distant, or too complicated to study through direct observations. Which is NOT a model?
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John is drawing diagrams to demonstrate the ways light can travel. What should he label box one?
John is drawing diagrams to demonstrate the ways light can travel. What should he label box one?
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John is drawing diagrams to demonstrate the ways light can travel. What should he label box on two?
John is drawing diagrams to demonstrate the ways light can travel. What should he label box on two?
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John is drawing diagrams to demonstrate the ways light can travel. What should he label box three?
John is drawing diagrams to demonstrate the ways light can travel. What should he label box three?
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John is drawing diagrams to demonstrate the ways light can travel. What should he label box four?
John is drawing diagrams to demonstrate the ways light can travel. What should he label box four?
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Look at the wave diagram. What property of a wave is shown at point 1?
Look at the wave diagram. What property of a wave is shown at point 1?
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Look at the wave diagram. What property of a wave is shown at point 2?
Look at the wave diagram. What property of a wave is shown at point 2?
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Look at the wave diagram. What property of a wave is shown at point 3?
Look at the wave diagram. What property of a wave is shown at point 3?
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Look at the wave diagram. What property of a wave is shown at point 4?
Look at the wave diagram. What property of a wave is shown at point 4?
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Which electromagnetic wave is located at position 2?
Which electromagnetic wave is located at position 2?
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Which electromagnatic wave is located at position 7?
Which electromagnatic wave is located at position 7?
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In which position would you find visible light?
In which position would you find visible light?
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Where on the diagram would the ball have the most potential energy?
Where on the diagram would the ball have the most potential energy?
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Where on the diagram would the ball have the most kinetic energy?
Where on the diagram would the ball have the most kinetic energy?
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What are the forces that work against inertia?
What are the forces that work against inertia?
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What determines the amount of inertia an objects has?
What determines the amount of inertia an objects has?
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A scientist must repeat his/her experiment several times and get the same results. What is this process called
A scientist must repeat his/her experiment several times and get the same results. What is this process called
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Scientists will often repeat another scientist's experiment to see if the first results are valid. What is this process called?
Scientists will often repeat another scientist's experiment to see if the first results are valid. What is this process called?
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If A scientist wants to ensure their results are reliable, what should they focus on?
If A scientist wants to ensure their results are reliable, what should they focus on?
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What does a Scientific Law do?
What does a Scientific Law do?
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What is a hypothesis?
What is a hypothesis?
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What is the difference between a scientifc law and a scientific theory?
What is the difference between a scientifc law and a scientific theory?
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Why do scientists develop a hypothesis before they conduct their experiments?
Why do scientists develop a hypothesis before they conduct their experiments?
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John shines a light on a piece of plastic. None of the light passes through the plastic. What does this tell us about the plastice
John shines a light on a piece of plastic. None of the light passes through the plastic. What does this tell us about the plastice
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A green house is made of a special plastic. The plastic allows some light through but everything inside appears blurry. What word below describes the green house?
A green house is made of a special plastic. The plastic allows some light through but everything inside appears blurry. What word below describes the green house?
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These waves must have a medium for the energy to transfer through.
These waves must have a medium for the energy to transfer through.
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These are the only waves that can travel without passing through a medium.
These are the only waves that can travel without passing through a medium.
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When we see a straw in a glass of water it may look broken or bent. Why does this occur?
When we see a straw in a glass of water it may look broken or bent. Why does this occur?
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John shines a white light on a box. When he does the box appears green. Why does this happen?
John shines a white light on a box. When he does the box appears green. Why does this happen?
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What type of friction would be used by an object sitting on a shelf?
What type of friction would be used by an object sitting on a shelf?
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What type of friction would be used by a sky diviver falling through the air?
What type of friction would be used by a sky diviver falling through the air?
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In an experiment scientist test a hypothesis. They can only test one thing at a time. What do we call the one thing they are testing/manipulating?
In an experiment scientist test a hypothesis. They can only test one thing at a time. What do we call the one thing they are testing/manipulating?
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For scientists to get valid results they can only test one thing at a time. This means they have to keep everything else exactly the same/constant. What do we call all the things kept the same?
For scientists to get valid results they can only test one thing at a time. This means they have to keep everything else exactly the same/constant. What do we call all the things kept the same?
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Which does NOT receive the independent variable during an experiment?
Which does NOT receive the independent variable during an experiment?
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What does the Law of Conservation of Energy state? (You MUST state all parts.)
What does the Law of Conservation of Energy state? (You MUST state all parts.)
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Explain why sound cannot travel in a vacuum .
Explain why sound cannot travel in a vacuum .
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- John wants to conduct an investigation to see if the angle light is reflected increases the temperature on the object it is reflected on. He has on mirror straight up. The second he changes to an 80 degree angle, another is placed at a 70 degree angle the last one is place at a 65 degree angle. He then shines a heat lamp on each and records the temperature on the object below after 5 minutes. What is the independent variable and what is the dependent variable?
- John wants to conduct an investigation to see if the angle light is reflected increases the temperature on the object it is reflected on. He has on mirror straight up. The second he changes to an 80 degree angle, another is placed at a 70 degree angle the last one is place at a 65 degree angle. He then shines a heat lamp on each and records the temperature on the object below after 5 minutes. What is the independent variable and what is the dependent variable?
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List the steps of the scientific method in order. Omit the 7th step communication.
List the steps of the scientific method in order. Omit the 7th step communication.
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How are speed and velocity alike? How are the 2 different.
How are speed and velocity alike? How are the 2 different.
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Study Notes
Work and Energy
- Gabrielle does 2000 J of work when she pulls a toy car 10 meters with a force of 200 N.
- Jack does 150000 J of work when he drags a shopping bag for 1000 meters with a force of 150 N.
- A 5 kg cat gains 100 J of gravitational potential energy (GPE) when lifted 2 meters into the air.
- A 70 kg box gains 3500 J of GPE when lifted 5 meters into the air.
- An angry bull with a mass of 700 kg has 35000 J of kinetic energy when running at 10 m/s.
- A waddling armadillo with a mass of 6 kg has 45 J of kinetic energy when moving at 5 m/s.
Forces and Friction
- Friction is a contact force that opposes motion between objects that are in contact.
- Tension is a contact force.
- Gravity is a non-contact force.
- Air resistance is a contact force.
- Magnetism is a non-contact force.
Science and Investigation
- Observation involves using the 5 senses to learn more about something.
- Inference involves forming an idea of why something happened in the past based on observations.
- Prediction involves forming an idea of what will happen in the future based on observations.
- Classification involves organizing or separating things by how they are alike or different.
- Measurement involves finding the size, mass, volume, distance, weight, or temperature of anything.
- Experimentation involves conducting controlled tests to determine if a hypothesis is correct.
- Data analysis involves looking at the data and finding patterns.
- Explanation involves using the information gained to try to explain or understand something.
Models and Waves
- Models are used to study things that are too big, too small, too distant, or too complicated to study through direct observations.
- Light can travel in different ways, including reflection, refraction, and diffraction.
Waves and Electromagnetic Spectrum
- The electromagnetic spectrum includes different types of waves, including gamma rays, X-rays, ultraviolet light, visible light, infrared light, microwaves, and radio waves.
- Visible light is located at position 5 on the electromagnetic spectrum.
Inertia and Energy
- Inertia is an object's resistance to changes in motion.
- The forces that work against inertia are friction, air resistance, and gravity.
- The amount of inertia an object has is determined by its mass.
- Kinetic energy is the energy of motion.
- Potential energy is stored energy.
Scientific Method
- The scientific method involves repeating an experiment several times to get the same results.
- Repeating another scientist's experiment to see if the first results are valid is called replication.
- Ensuring reliable results involves focusing on the controlled variables and the independent variable.
- A scientific law describes a consistent pattern in nature.
- A hypothesis is an educated guess that can be tested.
- A scientific theory is a well-substantiated explanation for a set of phenomena.
- Scientists develop a hypothesis before conducting experiments to guide their investigation.
Light and Optics
- When light passes through a medium, it can be refracted, or bent.
- Total internal reflection occurs when light hits a surface at a shallow angle and bounces back.
- John shines a light on a piece of plastic, and none of the light passes through, indicating that the plastic is opaque.
- A green house made of special plastic allows some light through, but everything inside appears blurry, indicating that the plastic is translucent.
Friction and Forces
- Static friction is the force that prevents an object from moving when a force is applied.
- Kinetic friction is the force that slows down an object that is already moving.
- Friction is necessary for an object to stop or change direction.
Independent and Dependent Variables
- The independent variable is the one thing being tested or manipulated in an experiment.
- The dependent variable is the thing being measured or observed in response to the independent variable.
- The controlled variables are the things kept the same to ensure a fair test.
Law of Conservation of Energy
- The Law of Conservation of Energy states that energy cannot be created or destroyed, only converted from one form to another.
Studying That Suits You
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Description
Students will be assessed on all materials studied during quarters 3 and 4.
