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Questions and Answers
What does acceleration refer to?
What does acceleration refer to?
- The distance an object moves during a specific time
- The resistance to a change in motion
- A force acting against gravity
- A change in an object's velocity (correct)
Which term best describes a force that opposes motion?
Which term best describes a force that opposes motion?
- Acceleration
- Inertia
- Gravity
- Friction (correct)
What is the term for the energy stored in an object?
What is the term for the energy stored in an object?
- Momentum
- Potential Energy (correct)
- Kinetic Energy
- Mass
How is velocity defined?
How is velocity defined?
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What does momentum measure?
What does momentum measure?
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Study Notes
Motion and Force
- Motion is a change in position.
- Velocity describes how fast an object is moving and in what direction.
- Speed is how fast an object is moving without considering direction.
- Acceleration is a change in velocity over time.
- Force is a push or pull on an object which can cause the object to change velocity (accelerate).
- Inertia is an object's tendency to resist changes in motion.
- Friction is a force resisting motion between two surfaces in contact.
Energy
- Energy is the ability to do work.
- Kinetic energy is the energy of motion.
- Potential energy is stored energy available to do work.
- Momentum is a measure of how difficult it is to stop a moving object.
- Weight is the force of gravity acting on an object's mass.
- Mass is the amount of matter in an object.
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