PAX PAX Physics Fundamentals 2

Question 1

A ball is dropped from rest. Which best describes its motion as it falls (ignoring air resistance)?

Accepted Answer

Constant acceleration downward

Answer

Gravity causes constant acceleration of approximately 9.8 m/s² downward.

Question 2

What type of wave is sound?

Accepted Answer

Longitudinal wave

Answer

Sound is a longitudinal wave where particle displacement is parallel to wave propagation.

Question 3

Which of the following is an example of a conductor?

Accepted Answer

Copper

Answer

Copper is a metal that allows electrons to flow freely, making it a good electrical conductor.

Question 4

If a car travels 150 miles in 3 hours, what is its average speed?

Accepted Answer

50 mph

Answer

Speed = distance ÷ time = 150 ÷ 3 = 50 mph.

Question 5

What is the principle that states energy cannot be created or destroyed, only converted?

Accepted Answer

Law of Conservation of Energy

Answer

The Law of Conservation of Energy states that the total energy in a closed system remains constant.

PAX - Pre-Admission Examination Practice Test