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5/40 MCQs for:

Dynamics: Newton’s Laws of Motion

If you push a 4.0 kg mass with the same force that you push a 10 kg mass from rest,

The 10 kg mass accelerates 2.5 times faster than the 4.0 kg mass.

None of the above is true.

Both masses accelerate at the same rate.

The 4.0 kg mass accelerates 2.5 times faster than the 10 kg mass.

An object of mass 6000 kg rests on the flatbed of a truck. It is held in place by metal brackets that can exert a maximum horizontal force of 9000 N. When the truck is traveling 15 m/s, what is the minimum stopping time if the load is not to slide forward into the cab?

10 s.

5.0 s.

13 s.

23 s

In the absence of an external force, a moving object will:

Go faster and faster.

Move with constant velocity.

Slow down and eventually come to a stop.

Stop immediately.

Which of the following statements is correct according to Newton's first law of motion?

An object in motion eventually comes to a halt.

An object in motion moves in a parabolic trajectory unless acted upon by a net force.

An object at rest remains at rest unless acted upon by a net force.

If an object at rest is acted upon by a force, it must move.

A golf club hits a golf ball with a force of 2400 N. The golf ball hits the club with a force:

Slightly less than 2400 N.

Slightly more than 2400 N.

Close to 0 N.

Exactly 2400 N.