Force and Motion Bellringer 3

After throwing a basketball through the net, Anna observed the ball as it hit the ground. Which is most likely responsible for the ball hitting the ground?

• friction

• gravity

• mass

• speed

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NGSS.MS-PS2-4

Chris climbs onto a skateboard ramp halfway between the top and the bottom of the ramp. Because gravity acts on Chris, which is most likely to happen?

• He won't move.

• He will roll up the ramp.

• He will roll down the ramp.

• He will float above the ramp.

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A push or a pull that can move an object is a __________.

• gear

• lever

• force

• machine

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If an object is stationary (not moving) the forces acting upon it are _____________

• unbalanced
• weak
• balanced
• Hulk Smash!

When forces are ___________ the object will move.

• unbalanced
• balanced
• light
• gravity

Tags

NGSS.MS-PS2-2

Why does a rolling ball stop?

• Gravity
• Friction
• Waterfalls
• Sand

How does the mass of an object affect the motion of an object?

• The greater the mass the less effect a force will have

• The greater the mass the greater the effect a force will have

• The less the mass the less effect a force will have

• It has no effect

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Inertia is....

• for every action, there is an equal and opposite reaction
• larger objects take more force to move 
• an object in motion tends to stay in motion unless acted on by an opposite force
• a push that acts in the opposite direction and it slows down.

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NGSS.MS-PS2-1

The change in a objects position is________.

• Force

• Motion

• Reaction

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The force that pulls all objects toward each other is called_______?

• push
• pull
• gravity
• mass

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