Laws of Motion

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.

• The one with a mass of .52 kg will have the greatest acceleration.

• They will both accelerate at the same rate.

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NGSS.MS-PS2-2

A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box? 

• 18N left

• 18N right

• 2N right

• 2N left

Tags

NGSS.MS-PS2-2

A car speeding up, a dog slowing down and person turning around the block are examples of..

• Balanced Forces

• Unbalanced Forces

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NGSS.MS-PS2-2

Which type of force(s) will cause a change in an object's motion?

• gravity

• zero net force

• balanced forces

• unbalanced forces

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NGSS.MS-PS2-2

What is the net force and the direction of movement?

• 50 Newtons, Left

• 50 Newtons, Right

• 500 Newtons, RIght

• 450 Newtons, LEft

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What law of motion does this picture represent?

• 1st law

• 2nd law

• 3rd law 

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NGSS.MS-PS2-1

As the fuel in a rocket ignites, the force of the gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

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NGSS.MS-PS2-1

When you are standing up in a subway train, and the train suddenly stops, your body continues to go foward.

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

A swimmer pushes water back with her arms, but her body moves forward.

• 1st law

• 2nd law

• 3rd law

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NGSS.MS-PS2-1

The magician pulled the tablecloth out from under the dishes and the dishes were left undisturbed.

• 1st law

• 2nd law

• 3rd law

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NGSS.MS-PS2-1