NGSS.MS-PS2-2

The force of gravity acting on an object is the object's ______.

• Mass
• Matter
• Weight 
• Terminal velocity 

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NGSS.MS-PS2-2

A ball is rolling on the floor and a force pushes it in the same direction, what will happen?

• The ball will go faster.
• The ball will slow down.
• The ball will stop. 
• The ball will fly in the air.

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NGSS.MS-PS2-2

The boat moves to the left at a speed of 4 m/s. The current moves to the right at 2 m/s. What will happen if the current increases to 5 m/s?

• The boat increase speed and continue moving left.
• The boat will sink. 
• The boat will move backwards.
• The boat will continue sailing to the left at a constant speed of 4 m/s.

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NGSS.MS-PS2-2

8 N to the left , and 4 N to the right. Find the net force. Is this balanced 

• 12 N Right  No
• 4 N Left  No
• 12 N Right  Yes
• 4 N Left  Yes

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NGSS.MS-PS2-2

Friction can make a moving object slow down or stop.

• True
• False

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NGSS.MS-PS2-2

1)  The model below represents a rocket in flight. What would be the best use of this model by a scientist?

• To model one-directional forces, as the rocket is affected only by one force.
• To model the idea of zero gravity, as the rocket is not affected by gravity
• To model the transition between the kinetic and potential energy of the rocket
• To model the effects of wind resistance on the rocket’s descent to the ground

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NGSS.MS-PS2-2

When does a falling object experienced balanced forces?

• When it reaches terminal velocity
• During free fall
• When it first starts to fall
• When it bounces up after hitting the ground

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NGSS.MS-PS2-2

Newton's second law of motion describes acceleration as force divided by __________.

• mass
• inertia
• speed
• direction

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NGSS.MS-PS2-2

What type of force is this man using to push his grocery cart?

• Normal Force

• Gravity

• Air Resistance

• Applied Force

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NGSS.MS-PS2-2

The net force is...

• 50 N

• 0 N

• 100 N

• 2500 N

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NGSS.MS-PS2-2