Newton's First Law of Motion

Objects at ____ will remain at rest. Objects in ____ motion will remain in motion until an outside force acts upon it.

(a)  

Which of these is an example of force?

• watching a slice of bread in the toaster

• pulling a pizza out of the oven

• listening to music

• sitting on a chair

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Velocity is...

• an object going in reverse

• the direction

• speed and direction together

• the same as speed

What does friction do to a moving object?

• Makes it rise

• Speeds it up

• Slows it down

• All choices are correct

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NGSS.MS-PS3-5

What would you need to move a soccer ball?

• Friction

• Gravity

• Force

• Inertia

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NGSS.MS-PS2-2

Which object would require the most amount of energy, or force, to set it into motion?

• a bus

• a plant

• a microwave

• a stuffed animal

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NGSS.MS-PS2-2

While you’re ice-skating with your friends, you push off from one end of the rink and slide forward. Based on Newton’s first law of motion, what is true?

• You will lose balance and fall

• You will continue to slide until a force makes you stop or change direction

• The force of gravity will make you keep your velocity

• You will not go far

Your friend kicks a ball, and it stops a few feet from you. What needs to happen to it in order for it to return to your friend?

• Inertia has to be added to the ball

• Friction has to stop the ball

• Speed has to be added to the ball

• Force must be applied

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NGSS.MS-PS2-2

NGSS.MS-PS3-5