Forces and Motions Review

What is Newton's 1st Law?

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

• An object at rest will stay at rest, an object in motion will stay in motion, unless an unbalanced force acts upon it.

What explains why objects resist changes in their state of motion?

• gravity

• inertia

• force

• friction

An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations

• Newton's first law
• Newton's second law
• Newton's third law
• Conservation of momentum

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Total distance divided by total time, for an object shows:

• acceleration

• the size of one's toupee

• absolute speed

• average speed

If a 10 kilogram object had a force of 50 newton's applied to it, what would its acceleration be?

• 15 m/s^2
• 5 m/s^2
• .5 m/s^2
• 10 m/s^2

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The diagram below shows unequal opposing forces.

Which way will the wagon move?

• The cart will move to the right.

• The wagon will move to the left.

• The wagon will remain stationary.

• The wagon will move left and then right and then stop.

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The force of an object, with a certain mass accelerating at a certain rate, can be determined by the equation below:

force = mass x acceleration

Which object would have the greatest force?

• a 5-kg object accelerating at 100 m/s

• a 5-kg object accelerating at 20 m/s

• a 20-kg object accelerating at 4 m/s

• a 20-kg object accelerating at 3 m/s

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What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

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What does this graph represent?

• Constant speed
• Acceleration
• Not moving

What is this line of this graph showing?

• moving away from starting point at a constant speed

• moving back towards the starting point at a constant speed

• acceleration (getting faster)

• deceleration (getting slower)

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