Forces and Motion Review

If the net force on an object is zero, what can you

conclude?

• The object is not moving.

• The object is slowing down.

• The object is moving fast.

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What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

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What is the net force?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

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You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

• 60 N right

• 10 N left

• 10 N right

• 60 N left

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The sum of all forces acting on an object and direction

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

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Are forces balanced or unbalanced when a marble rolls down a ramp?

• Balanced
• Unbalanced

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Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

• Balanced
• Unbalanced

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Which objects have a STRONG force of gravity?

• Objects with GREATER mass, like elephants
• Objects with LESS mass, like mice

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Why a ball falls to the ground?

• Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground. 
• Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground. 

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Is weight AFFECTED by gravity?

• YES, depending on the force of gravity is how much you weight.
• NO, it is not related.

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