Principles of Motion and Energy

What is a PUSH or PULL of an object?

• Motion

• Friction

• Force

• Gravity

Tags

NGSS.MS-PS2-1

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A push moves things _______ .

• Close to you

• Away from you

Tags

NGSS.3-PS2-1

A pull moves things _______ .

• Closer to you

• Away from you

What is motion?

• A change in position.

• A change in force.

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NGSS.MS-PS3-1

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When your position changes, you're in ____________.

• motion

• force

Which requires more force to move it?

• A heavy object, like a bowling ball.

• A light object, like a tennis ball

Tags

NGSS.MS-PS2-2

What is a force that works AGAINST MOTION?

• Force

• Gravity

• Motion

• Friction

What does friction do to the motion of an object?

• Friction slows down or stops an object.

• Friction keeps an object from moving.

• All of the above.

Tags

NGSS.MS-PS2-2

Objects that are smooth have LESS friction than objects that are rough.

• True

• False

A hard wood floor has more friction than a carpet.

• True

• False