1. Which of the following is a scalar quantity?
(a) Velocity
(b) Acceleration
(c) Force
(d) Speed
2. Newton’s second law of motion is expressed as:
(a) F = m/a
(b) F = ma
(c) F = a/m
(d) F = m – a
3. The unit of work is:
(a) Joule
(b) Newton
(c) Watt
(d) Kilogram













