Science: Force and Motion

What is a force?

• A force is a measurement of time.

• A force is a push or pull.

• A force is a form of matter.

• A force is a type of energy.

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Give an example of a force in everyday life.

• Pulling a drawer.

• Lifting a book.

• Squeezing a sponge.

• Pushing a door

What is motion?

• Change in position of an object over time.

• Change in color of an object over time.

• Change in speed of an object over time.

• Change in shape of an object over time.

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What are the three types of motion?

• linear motion, circular motion, and oscillatory motion

• translational motion

• rotational motion

• random motion

What is friction?

• Force that opposes motion

• Force that increases speed

• Force that causes motion

• Force that attracts objects

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How does friction affect motion?

• Friction increases motion.

• Friction has no effect on motion.

• Friction accelerates motion.

• Friction opposes motion.

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What is gravity?

• Gravity is a force that attracts objects towards each other.

• Gravity is a force that only exists on Earth.

• Gravity is a force that only affects large objects.

• Gravity is a force that repels objects away from each other.

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What is the acceleration of an object in free fall?

• 5 m/s^2

• 12 m/s^2

• 9.8 m/s^2

• 2.5 m/s^2

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What is acceleration?

• Rate of change of speed

• Change in position over time

• Rate of change of distance

• Rate of change of velocity

How is acceleration calculated?

• Change in distance divided by time taken.

• Change in speed divided by time taken.

• Change in velocity divided by time taken

• Change in position divided by time taken.