Forces and Motion

What is force?

• A measure of power

• A push or pull

• How fast something is moving

• A tool of the Jedi

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What is the scientific unit for speed?

• F = ma

• kg

• m/s^2

• m/s

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Speed & Direction together is called -

• Velocity

• Viscosity

• Newton's Law

• Acceleration

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What is acceleration?

• How fast an object is moving

• Change in velocity over time

• Speed + Direction

• An object in motion stays in motion

F=ma

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's favorite law

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What is the scientific unit for force?

• kg

• m/s

• N

• cm

A ball with a mass of 3 kg is accelerating down a hill at 15 m/s^2. What is its force?

• 5 N

• 12 N

• 0.2 N

• 45 N

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Objects in motion will stay in motion and objects at rest will stay at rest, until acted on by ___________

• Inertia

• Newton

• Balanced Force

• Unbalanced force

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If the forces on an object are balanced, it will -

• Maintain its current velocity

• Slow down and stop

• Start to accelerate

• Explode

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Mass and Weight are the same thing.

• True

• False