Newton's Laws Quiz Prep

Which law? First, Second, or Third?

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

• 1st

• 2nd

• 3rd

Which law? First, Second, or Third?

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.

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-1

Which law? First, Second, or Third?

A pitched baseball goes faster than one that is gently thrown.

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS3-1

Which law? First, Second, or Third?

When Bobby, age 5, and his dad are skipping pebbles on the pond, the pebbles that Bobby's dad throws go farther and faster than his.

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which law? First, Second, or Third?

When you paddle a canoe, the canoe goes forward.

• 1st

• 2nd

• 3rd

Tags

NGSS.MS-PS2-1

Which law? First, Second, or Third?

A little girl who has been pulling a sled behind her in the snow is crying because when she stopped to tie her hat on, the sled kept moving and hit her in the back of the legs.

• 1st

• 2nd

• 3rd

What measure is most similar to inertia?

• acceleration

• density

• mass

• velocity

Tags

NGSS.MS-PS2-2

An object has a velocity of 2 m/s travelling North that has balanced forces. Describe the object’s motion over time in terms of direction and speed. 

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Answer explanation

Objects with balanced forces (Fnet = 0) have constant velocity (same speed and direction over time).

Which of the following scenario(s) has unbalanced forces?

• The object is motionless.

• The object has a constant velocity.

• The object is accelerating.

Tags

NGSS.MS-PS2-2

Which of the following scenario(s) has balanced forces?

• The object is motionless.

• The object has a constant velocity.

• The object is accelerating.