Elective Mathematics

Question 1

1The coefficient of friction μ equals

Easy

A. F − R B. R/F C. F/R D. F × R

Question 2

2The weight of a 9 kg mass (g = 10 m/s²) is ___ N.

Easy

Your answer (fill in the blank)

Question 3

3A force of 8 N acts on a mass of 2 kg. Find its acceleration.

Easy

A. 2 m/s² B. 5 m/s² C. 8 m/s² D. 4 m/s²

Question 4

4The weight of a 8 kg mass (g = 10 m/s²) is ___ N.

Easy

Your answer (fill in the blank)

Question 5

5A force of 20 N acts on a mass of 10 kg. Find its acceleration.

Easy

A. 3 m/s² B. 10 m/s² C. 20 m/s² D. 2 m/s²

Question 6

6Friction always acts in the direction of motion.

Easy

A. True B. False

Question 7

7The SI unit of force is the

Easy

A. joule B. pascal C. watt D. newton

Question 8

8Two perpendicular forces of 3 N and 4 N act at a point. Find the magnitude of the resultant.

Easy

A. 5 N B. 12 N C. 1 N D. 7 N

Question 9

9Newton's second law states that

Easy

A. action equals reaction B. energy is conserved C. bodies stay at rest D. force = mass × acceleration

Question 10

10Newton's third law states that

Easy

A. F = ma B. every action has an equal and opposite reaction C. momentum is lost D. bodies fall equally