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Questions and Answers
What property of metals allows them to conduct electricity effectively?
What property of metals allows them to conduct electricity effectively?
Non-metals typically have higher melting and boiling points compared to metals.
Non-metals typically have higher melting and boiling points compared to metals.
False
What is the state of matter for sulfur?
What is the state of matter for sulfur?
Solid
Copper, aluminum, and iron are examples of ______.
Copper, aluminum, and iron are examples of ______.
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Match the following elements with their typical states at room temperature:
Match the following elements with their typical states at room temperature:
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Which property describes a material that can be stretched into thin wires?
Which property describes a material that can be stretched into thin wires?
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Aluminium and titanium are heavy metals often used in aeroplanes.
Aluminium and titanium are heavy metals often used in aeroplanes.
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What should be worn for eye protection when conducting experiments with metals?
What should be worn for eye protection when conducting experiments with metals?
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In the experiment, the metal that can be bent and flattened into thin sheets is described as _____.
In the experiment, the metal that can be bent and flattened into thin sheets is described as _____.
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Match the following properties with their definitions:
Match the following properties with their definitions:
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What is the main purpose of an energy flow diagram?
What is the main purpose of an energy flow diagram?
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The 'output' stage of an energy flow diagram describes the energy present before any interaction within the system.
The 'output' stage of an energy flow diagram describes the energy present before any interaction within the system.
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What energy transformation occurs in the process stage of the water wheel example?
What energy transformation occurs in the process stage of the water wheel example?
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An energy flow diagram typically consists of three stages: __________, Process, and Output.
An energy flow diagram typically consists of three stages: __________, Process, and Output.
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Match the following components of the energy flow diagram with their descriptions:
Match the following components of the energy flow diagram with their descriptions:
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Which type of energy does a bent ruler hold before it is released?
Which type of energy does a bent ruler hold before it is released?
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Kinetic energy can be transformed into potential energy.
Kinetic energy can be transformed into potential energy.
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Define energy transfer in your own words.
Define energy transfer in your own words.
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When a bent ruler is released, it transfers _____ energy to the paper ball.
When a bent ruler is released, it transfers _____ energy to the paper ball.
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What type of energy does the ruler possess before it is released?
What type of energy does the ruler possess before it is released?
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Match the following energy forms with their description:
Match the following energy forms with their description:
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Thermal energy is only produced by motion.
Thermal energy is only produced by motion.
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What happens to the temperature of hot water when it is placed in a cooler environment?
What happens to the temperature of hot water when it is placed in a cooler environment?
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In the beaker with hot water, the food colouring particles move _____ compared to those in the cold water.
In the beaker with hot water, the food colouring particles move _____ compared to those in the cold water.
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Match the energy type with its description:
Match the energy type with its description:
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Which of the following activities demonstrates a transfer of thermal energy?
Which of the following activities demonstrates a transfer of thermal energy?
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Bending the ruler reduces its potential energy.
Bending the ruler reduces its potential energy.
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What causes the food colouring to move faster in hot water?
What causes the food colouring to move faster in hot water?
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What is the primary process involved in conduction?
What is the primary process involved in conduction?
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Conduction occurs primarily in gases.
Conduction occurs primarily in gases.
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What happens to the temperature of a cold pot placed on a hot stove?
What happens to the temperature of a cold pot placed on a hot stove?
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Heat energy travels from the ______ object to the ______ object until they reach the same temperature.
Heat energy travels from the ______ object to the ______ object until they reach the same temperature.
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Match the following scenarios with their corresponding conduction examples:
Match the following scenarios with their corresponding conduction examples:
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What is the primary source of energy in the thermal system described?
What is the primary source of energy in the thermal system described?
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Wearing safety glasses is optional when using a Bunsen burner or spirit burner.
Wearing safety glasses is optional when using a Bunsen burner or spirit burner.
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What type of energy transfer occurs when the water in the tin is heated?
What type of energy transfer occurs when the water in the tin is heated?
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The energy that causes the bulb to glow comes from the ______.
The energy that causes the bulb to glow comes from the ______.
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Match the following components of an electrical system with their roles:
Match the following components of an electrical system with their roles:
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What is the primary source of energy for plants?
What is the primary source of energy for plants?
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Animals obtain their energy directly from the Sun.
Animals obtain their energy directly from the Sun.
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What type of energy is contained in grass that is consumed by a horse?
What type of energy is contained in grass that is consumed by a horse?
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A windmill is an example of a ______ energy system.
A windmill is an example of a ______ energy system.
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Match the following energy systems with their energy type:
Match the following energy systems with their energy type:
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Which of the following is NOT a semimetal?
Which of the following is NOT a semimetal?
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Semimetals can conduct electricity better than metals.
Semimetals can conduct electricity better than metals.
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Name the semimetal that is the most common and is often used in electronic devices.
Name the semimetal that is the most common and is often used in electronic devices.
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Semimetals display a combination of properties of both _____ and _____ materials.
Semimetals display a combination of properties of both _____ and _____ materials.
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Match the following semimetals with their descriptions:
Match the following semimetals with their descriptions:
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Which of the following is NOT a characteristic of semimetals?
Which of the following is NOT a characteristic of semimetals?
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Semimetals like silicon and germanium are used for manufacturing optical fibers.
Semimetals like silicon and germanium are used for manufacturing optical fibers.
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Name a common electronic device that uses semimetals in its production.
Name a common electronic device that uses semimetals in its production.
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Antimony and tellurium are examples of ______.
Antimony and tellurium are examples of ______.
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Match the following semimetals with their primary uses:
Match the following semimetals with their primary uses:
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Study Notes
Activity 7: Investigating energy transfer in a mechanical system
- Equipment: ruler, paper pellet or plastic bottle top
-
Method:
- Place the pellet (or bottle top) at one end of a desk.
- Bend a ruler until it has enough potential energy to cause the pellet to move when it is released.
- Release the ruler so that it hits the pellet and moves across the desk.
- Repeat steps 2 and 3, but change the amount of bending to see what strength makes the paper pellet move faster.
- Explain in your own words what causes the ruler to have the power to drive the pellet away.
- Draw the energy transfer diagram for this event.
Thermal systems
- Thermal energy is energy produced by heat.
- Heat energy is transferred between the different parts of a thermal system.
- When a substance is heated, the particles move faster and faster.
- The movement causes the temperature of the substance to rise.
- Temperature is how cold or hot an object is.
- Hot water in a cup that is placed on a table, eventually becomes cold since the surroundings are cooler than the water in the cup.
- Thermal energy from the hot water is transferred to the cooler surroundings.
Activity 8: Comparing kinetic energy at different temperatures
- Equipment: two beakers, some hot water, some cold water, food colouring
-
Method:
- Pour hot water into one of the beakers and cold water into the other.
- Add two drops of food colouring to each beaker.
- Observe and compare the movement of the food colouring in both beakers.
- Draw a conclusion about the kinetic energy of the food colouring particles and the temperature of the water.
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Description
This quiz covers the properties of metals, their ability to conduct electricity, and various material states. Additionally, it explores the concepts of energy flow diagrams and their stages, including input, process, and output. Test your knowledge on both fundamental chemistry and energy concepts!