ESAT ESAT Physics

Question 1

What is Newton's second law of motion as typically tested in the ESAT Physics section?

Accepted Answer

F = ma

Answer

Newton's second law states that the net force equals mass multiplied by acceleration (F = ma).

Question 2

In an ESAT physics problem, a 2 kg object accelerates at 5 m/s². What net force acts on it?

Accepted Answer

10 N

Answer

F = ma = 2 kg × 5 m/s² = 10 N.

Question 3

Which of the following describes the work-energy theorem?

Accepted Answer

Net work done on an object equals its change in kinetic energy

Answer

The work-energy theorem states W_net = ΔKE = ½mv² - ½mu².

Question 4

What is the SI unit of electric charge?

Accepted Answer

Coulomb (C)

Answer

The SI unit of electric charge is the coulomb (C), equal to one ampere-second.

Question 5

A wave has frequency 500 Hz and wavelength 0.68 m. What is its speed?

Accepted Answer

340 m/s

Answer

v = fλ = 500 × 0.68 = 340 m/s, which is the speed of sound in air.

ESAT - Engineering & Science Admissions Test Practice Test