Test REVIEW - Chapter 6 - Newton's Second Law of Motion

A change in velocity over time is called ___________.

• speed
• force
• acceleration
• direction

(TRUE or FALSE.) An object's velocity can be changed by changing its speed, its direction, or both.

(a)  

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NGSS.MS-PS3-1

The increasing speed of a falling object is caused by _____________.

• force
• mass
• speed
• gravity

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NGSS.MS-PS2-4

Newton's second law of motion describes acceleration as force divided by (a)   .

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NGSS.MS-PS2-2

What happens when unbalanced forces act on an object at rest?

• the object remains at rest
• the object begins moving in an unpredictable direction
• the object begins moving in the direction of the net force
• the object begins moving opposite to the direction of net force

Tags

NGSS.MS-PS2-2

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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NGSS.MS-PS2-2

Football A has a greater mass than football B.  Which football will have greater acceleration when both are thrown with the same force in the same direction?

• Football A
• Football B
• They will have the same acceleration
• Mass has no effect on acceleration

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NGSS.MS-PS2-2

What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

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.

Tags

NGSS.MS-PS2-2

What is the formula for force?

• F=M/A

• F=MA

• F=AX

• what is force?