M.c.q on Physics ?

1. What is the SI unit of force?
a) Newton
b) Joule
c) Watt
d) Pascal

2. Which of the following is a vector quantity?
a) Mass
b) Temperature
c) Velocity
d) Time

3. What is the formula for calculating kinetic energy?
a) KE = 1/2mv^2
b) KE = mgh
c) KE = Fd
d) KE = P/t

4. What is the law of conservation of energy?
a) Energy cannot be created or destroyed, only transferred or transformed
b) Energy can be created or destroyed
c) Energy is always conserved in a closed system
d) Energy is constant in a closed system

5. What is the formula for calculating work done?
a) W = Fd
b) W = mg
c) W = P/t
d) W = 1/2mv^2

6. What is the acceleration due to gravity on Earth?
a) 9.8 m/s^2
b) 6.7 m/s^2
c) 12.5 m/s^2
d) 5.2 m/s^2

7. What is the formula for calculating power?
a) P = W/t
b) P = Fd
c) P = 1/2mv^2
d) P = mg

8. What is the unit of measurement for electric current?
a) Ampere
b) Volt
c) Ohm
d) Watt

9. What is the formula for calculating momentum?
a) p = mv
b) p = Fd
c) p = KE
d) p = W/t

10. What is the law of universal gravitation?
a) Every object in the universe attracts every other object with a force proportional to the product of their masses and inversely proportional to the square of the distance between them
b) Every object in the universe repels every other object with a force proportional to the product of their masses and directly proportional to the distance between them
c) Every object in the universe attracts every other object with a force proportional to the square of their masses and inversely proportional to the distance between them
d) Every object in the universe repels every other object with a force proportional to the square of their masses and directly proportional to the distance between them

1. Which of the following is a scalar quantity?

(a) Velocity
(b) Speed
(c) Acceleration
(d) Force

2. The SI unit of force is:

(a) Newton
(b) Kilogram
(c) Meter
(d) Second

3. Which of the following is Newton's second law of motion?

(a) F = ma
(b) F = kx
(c) v = u + at
(d) W = Fs

4. The energy stored in a spring is given by:

(a) 1/2 kx^2
(b) kx
(c) 1/2 mv^2
(d) mgh

5. Which of the following is a vector quantity?

(a) Temperature
(b) Time
(c) Velocity
(d) Mass

6. The acceleration due to gravity on Earth is approximately:

(a) 9.8 m/s^2
(b) 10 m/s^2
(c) 11 m/s^2
(d) 12 m/s^2

7. Which of the following is a fundamental force?

(a) Frictional force
(b) Gravitational force
(c) Tension force
(d) Normal force

8. The wavelength of a wave is inversely proportional to its:

(a) Frequency
(b) Amplitude
(c) Velocity
(d) Energy

9. Which of the following is a transverse wave?

(a) Sound wave
(b) Electromagnetic wave
(c) Water wave
(d) Compression wave

10. The speed of light in a vacuum is approximately:

(a) 3 x 10^8 m/s
(b) 2 x 10^8 m/s
(c) 4 x 10^8 m/s
(d) 5 x 10^8 m/s

Answer Key:

1. (b)
2. (a)
3. (a)
4. (a)
5. (c)
6. (a)
7. (b)
8. (a)
9. (b)
10. (a)