Physics Review #1

Objects move only when force is exerted.

• True

• False

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NGSS.MS-PS2-2

If the force acting on a cart doubles, what happens to the cart's acceleration?

• it quadruples

• it doubles

• it halves

• it quarters

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NGSS.MS-PS2-2

While a boulder is on the top of a hill it has what type of energy? 

• Mechanical
• Kinetic
• Potential 
• Reactive 

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NGSS.MS-PS3-2

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• Both the potential energy and kinetic energy decrease
• The potential energy decreases while the kinetic energy increases 
• The kinetic energy decreases while the potential energy increases 
• Bothe the potential energy and kinetic energy increase 

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Unit of Power

• joule
• watt
• meter
• newton

Energy of Motion

• radiant energy
• electrical energy
• kinetic energy
• potential energy

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which point has the most kinetic energy?

• Ball G

• Ball F

• Ball E

• Ball D

• Ball A

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NGSS.MS-PS3-1

NGSS.MS-PS3-4

For work to be done on an object,

• some force need only be exerted on the object.

• the object must move some distance as a result of a force.

• the object must move, whether or not a force is exerted on it.

• the object must not move.

Tags

NGSS.MS-PS2-2

A light plastic cart and a heavy steel cart are both pushed with the same force for a distance of 1.0 m, starting from rest. After the force is removed, the kinetic energy of the light plastic cart is ________ that of the heavy steel cart.

• greater than

• equal to

• less than

• can't say unless we know how big the force is

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

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NGSS.MS-PS2-2

NGSS.MS-PS2-1