Unit 3: Forces and Energy

When an object is not in motion. What type of forces are acting on it?

• Balanced

• Unbalanced

• Input

• Output

When an object is in motion. What caused it to move?

• Balanced Force

• Unbalanced Force

• input

• Output

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How hard it is for an object to stop once it is in motion is which concept?

• speed

• acceleration

• velocity

• momentum

The sum of forces acting on an object is:

• Acceleration

• Speed

• Force

• Net Force

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When playing basketball I throw the ball 100 m in 10 seconds. This is a measurement of?

• Speed

• Acceleration

• Velocity

• Motion

When throwing a football is traveled 20 m/s South. What is this a measurement of?

• Velocity

• Motion

• Speed

• Acceleration

What is the equation to find Force?

• F=ma

• F=m/a

• F=a/m

• F=v/m

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Objects with mass are acted on by this noncontact force:

• Magnetism

• Inertia

• Gravity

• Friction

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For every action there is an equal and opposite reaction

• Newton's third law

• Newton's first law

• Newton's second Law

• Law of Momentum

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An object at rest will stay at rest. An object in motion will stay in motion unless acted on by an unbalanced force.

• Newtons 1st Law

• Newtons 2nd Law

• Newtons 3rd Law

• Law of Conservation of Momentum