Forces and Motion Review | Baamboozle - Baamboozle

English 15 Public

7th Grade Science

Study Slideshow

What force causes an object in motion to remain in motion?

Inertia

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A swimmer pushing off from the wall of pool exerts a force of 1 N on the wall. what is the reaction force of the wall on the swimmer?

1 N

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Where around a magnet is the magnetic field the strongest?

The poles (ends)

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What is Newton's 1st law of motion?

Intertia-An object in motion stays in motion and an object at rest stays at rest unless acted on by an unbalanced force.

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What is Newton's 2nd law of motion?

F=m x a-The more mass, the more force you need to make it accelerate

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What is Newton's 3rd law of motion?

For every action, there is an equal but opposite reaction.

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If I push a 10 kg block with a force of 10 N, what is the acceleration of the block?

1 m/s^2 or m/s/s

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I push Brilliant Bob on a skateboard and he has a mass of 60 kg and is accelerating at 2 m/s^2. What is the force I used to push him?

120 N

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In which direction does the force of friction work?

Opposite of motion

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If a skateboarder has a mass of 20 kg and has a velocity of 10 m/s, what is their momentum?

200 kg m/s

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If a skateboarder has a mass of 20 kg and a momentum of 40 kg m/s, what is the velocity of the skateboarder?

20 m/s

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If you let go of the magnets in this picture what would they do?

Attract towards each other

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If you let go of the magnets in this picture what would they do?

Repel

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Which of Newton's laws is this showing?

Newton's third law

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What is the orange arrow showing?

Friction force

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