How NEET Physics Works — Practice

Question 1

A body starts from rest and moves with a constant acceleration of 2 m/s². How far does it travel in 5 s?
(a) 25 m (b) 10 m (c) 50 m (d) 20 m

Accepted Answer

(a) 25 m.

Using s = ut + ½at² with u = 0: s = ½ × 2 × 5² = ½ × 2 × 25 = 25 m.

Question 2

What force is needed to give a 10 kg body an acceleration of 2 m/s²?
(a) 20 N (b) 5 N (c) 12 N (d) 40 N

Accepted Answer

(a) 20 N.

F = ma = 10 × 2 = 20 N.

Question 3

A constant force of 10 N moves a body 5 m in the direction of the force. The work done is:
(a) 50 J (b) 2 J (c) 15 J (d) 500 J

Accepted Answer

(a) 50 J.

W = F·s·cosθ with θ = 0: W = 10 × 5 × 1 = 50 J.

Question 4

A 5 V source drives current through a 10 Ω resistor. The current is:
(a) 0.5 A (b) 2 A (c) 50 A (d) 15 A

Accepted Answer

(a) 0.5 A.

I = V/R = 5/10 = 0.5 A.

Question 5

The kinetic energy of a 2 kg body moving at 3 m/s is:
(a) 9 J (b) 6 J (c) 18 J (d) 3 J

Accepted Answer

(a) 9 J.

KE = ½mv² = ½ × 2 × 3² = ½ × 2 × 9 = 9 J.

Question 6

The weight of a 5 kg object (take g = 10 m/s²) is:
(a) 50 N (b) 5 N (c) 0.5 N (d) 500 N

Accepted Answer

(a) 50 N.

Weight W = mg = 5 × 10 = 50 N.

Question 7

A machine does 600 J of work in 10 s. Its power output is:
(a) 60 W (b) 6 W (c) 6000 W (d) 610 W

Accepted Answer

(a) 60 W.

Power P = work/time = 600/10 = 60 W.

Question 8

A car moving at 72 km/h has a speed in SI units of:
(a) 20 m/s (b) 72 m/s (c) 25 m/s (d) 10 m/s

Accepted Answer

(a) 20 m/s.

Multiply by 5/18 to convert km/h to m/s: 72 × 5/18 = 20 m/s. Converting to SI before any further calculation is the habit NEET Physics demands.

Practice — How NEET Physics Works