Forces and Newton's Laws

A 20 kg bike accelerates at 10 m/s².  What was the force?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

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Which is newtons 3rd law

• for every thing there is reaction

• for every reaction there is a unusual action

• For every reaction there is an equal and opposite reaction

• for every reaction there is an good action

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Newton's third law states that any action will have a(n) _______ and ______ reaction

• equal and same

• equal and opposite

• equal and equal to

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Which is newtons first law states

• An object at rest will remain at rest unless a force is applied

• An object is moving

• An object has stopped

• An moving object will keep going when a force is applied to it

Which is newtons 2nd law

• Acceleration is a change in speed

• Acceleration is a change in action

• Acceleration is a change in name

• Acceleration is a change in velocity

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What is an example of newtons 3rd law

• running

• car crash

• high five

• walking

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An example of newtons 1st law

• kicking a ball

• walking

• moving

• running

Which type of force(s) will cause a change in an object's motion?

• gravity

• balanced forces

• unbalanced force

• net force

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The tendency of objects to resist a change in motion is called:

• Friction

• Inertia

• Gravity

• Velocity

The force required to maintain a body at constant velocity in free space is equal to:

• Zero

• The mass of the body

• The weight of the body

• None of these

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