Phy. Sci. Chapter 3 Review Forces & Newton

If there are two forces going in the same direction how would you find the net force?

• Subtract
• Add
• Neither
• Multiply

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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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With unbalanced forces, the object will move in the direction of the _______ force.

• larger 
• smaller 
• equal 

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What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

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According to Newton's second law, if you increase the force applied to an object :

• it accelerates more
• it doesn't move
• you get more inertia
• it decelerates

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A 20 kg bike accelerates at 10 m/s².  What was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

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According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will

• remain in motion.
• eventually come to a stop.
• change its momentum.
• accelerate.

What law?

• 1st
• 2nd
• 3rd

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This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

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A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

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