Exploring the Properties of Forces and Newton's Laws

What is the basic definition of force?

• A change in temperature

• A type of energy

• A form of light

• A push or pull on an object

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Which of the following is an example of a pull force?

• Throwing a baseball

• Pressing a button

• Plugging a wire

• Kicking a ball

What happens when forces on an object are balanced?

• The object heats up

• The object remains still

• The object moves faster

• The object changes shape

What is an example of an unbalanced force?

• A balanced seesaw

• A magnet pulling iron particles

• A cheerleader pyramid

• A golf ball at rest

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How does friction affect the movement of objects?

• It speeds them up

• It slows them down

• It changes their color

• It makes them lighter

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What is gravity?

• A form of energy

• A type of friction

• A force that attracts objects

• A force that repels objects

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What is the strongest force in the universe?

• Gravity

• Friction

• Electromagnetism

• Nuclear force

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According to Newton's first law, what will happen to an object at rest?

• It will remain at rest

• It will accelerate

• It will start moving on its own

• It will change direction

What does Newton's second law of motion state?

• Friction opposes motion

• An object at rest will remain at rest

• For every action, there is an equal and opposite reaction

• Force equals mass times acceleration

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Why does a knife cut an apple better than a ruler?

• The knife is heavier

• The knife is longer

• The knife has a smaller area

• The knife is sharper