Newton's Laws of Motion — Unit test Answers

0 verified answers2 views

Free Preview

Action and reaction forces are described by which of Newton’s laws of motion?

first

second

third

fourth

Free Preview

Juan inflates a balloon and then releases its end to let the balloon go free as air comes out. The balloon then flies around the room.

According to Newton’s first law of motion, the balloon would stay still unless a force caused it to move.

According to Newton’s third law of motion, the balloon is pushed forward as the air is forced out.

According to Newton’s third law of motion, the balloon resists any change of motion unless an unbalanced force acts upon it.

According to Newton’s second law of motion, the balloon exerts a force on the air, which exerts a force back on the balloon.

Increasing which factor will cause the gravitational force between two objects to decrease?

weights of the objects

distance between the objects

acceleration of the objects

masses of the objects

The diagram shows two balls before they collide.

0.0 kg • m/s

0.2 kg • m/s

0.3 kg • m/s

0.4 kg • m/s

Which describes an object in projectile motion?

Gravity acts to push the object sideways.

The object moves in a straight path.

The forward velocity of the object is 0 m/s.

The object’s inertia carries it forward.

Did you find these answers helpful?

More from this Course