Grade 10 Motion & energy worksheet

What is on the worksheet

1. A device transfers 504 J in 8 s. Find average power in W.

2. A device receives 6300 J and delivers 945 J of useful energy. Find its efficiency as a percentage.

3. Lift a 7 kg mass vertically by 25 m. Using g = 10 m/s², find the increase in gravitational potential energy in J.

4. A device receives 7000 J and delivers 3150 J of useful energy. Find its efficiency as a percentage.

5. Velocity changes from 8 m/s to 0 m/s in 4 s. Find average acceleration in m/s².

6. A constant 41 N force acts in the same direction as a 35 m displacement. Find work in J.

7. A perpendicular force of 280 N acts over 28 m². Find the pressure in Pa.

8. A 13 kg sample has specific heat 800 J/(kg·°C). Its temperature rises 14°C with no phase change. Find the energy gained in J.

9. A 8 kg sample has specific heat 500 J/(kg·°C). Its temperature rises 4°C with no phase change. Find the energy gained in J.

10. A mass of 48 kg has velocity -27 m/s. Find its signed momentum in kg·m/s.

11. A device receives 5300 J and delivers 5035 J of useful energy. Find its efficiency as a percentage.

12. An object moves at constant velocity -6 m/s for 33 s. Find displacement in m.

13. A device transfers 69 J in 23 s. Find average power in W.

14. Velocity changes from 21 m/s to -6 m/s in 9 s. Find average acceleration in m/s².

15. A perpendicular force of 598 N acts over 23 m². Find the pressure in Pa.

16. An object moves at constant velocity -23 m/s for 16 s. Find displacement in m.

17. A device transfers 630 J in 9 s. Find average power in W.

18. An object of mass 18 kg accelerates at 10 m/s². Find the net force in N.

19. A 15 kg sample has specific heat 400 J/(kg·°C). Its temperature rises 10°C with no phase change. Find the energy gained in J.

20. A constant 41 N force acts in the same direction as a 22 m displacement. Find work in J.