Unit 2 Retake Test

Front

What is vertical velocity?

Back

Vertical velocity refers to the speed of an object in the vertical direction, typically influenced by gravity.

Front

At what point is vertical velocity the smallest?

Back

At point B.

Front

What happens to horizontal speed of a projectile when air resistance is ignored?

Back

The horizontal speed remains constant.

Front

If a projectile is launched with a horizontal speed of 54 m/s, what is its horizontal speed after 2 seconds?

Back

54 m/s.

Front

What determines which object hits the ground first when dropped from the same height?

Back

The time to hit the ground is independent of horizontal speed; both will hit at the same time.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate or change its state of motion.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces do.

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

In a collision between a bus and a bug, which force is greater?

Back

The forces are the same; they are equal in magnitude but opposite in direction.

Front

What is the role of gravity in projectile motion?

Back

Gravity acts downward, affecting the vertical component of motion.