Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 943 · 40 questions

Engineer's tip (Add same way, subtract opposite): Push moves away, pull moves towards; force is measured in newtons (N). Same direction: add. Opposite directions: bigger − smaller, towards the bigger. Weight (N) ≈ mass (kg) × 10.

1. 1.Which of these is caused by gravity? (a) brakes stop a bicycle (b) shoes grip the floor (c) rain falls to the ground (d) pedalling a cycle
2. 2.💪 Which force is at work: a compass needle turns? (a) magnetic force (b) muscular force (c) gravity (d) friction
3. 3.💪 A cart is pulled to the right with 90 N and to the left with 105 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
4. 4.💪 Is pressing a doorbell a push or a pull? (a) a push (b) a pull
5. 5.💪 Which force is at work: a fridge magnet sticks? (a) friction (b) magnetic force (c) gravity (d) muscular force
6. 6.💪 Two children push a box to the right, one with 15 N and the other with 85 N. What is the net (total) force on the box, in newtons?
7. 7.💪 A bag has a mass of 41 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
8. 8.True or false: kicking a football is a pull. (a) False (b) True
9. 9.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) unbalanced (c) balanced (d) doubled
10. 10.💪 Which force is at work: a river flows downhill? (a) muscular force (b) friction (c) magnetic force (d) gravity
11. 11.💪 Two children push a box to the right, one with 40 N and the other with 80 N. What is the net (total) force on the box, in newtons?
12. 12.Which of these is caused by friction? (a) squeezing a lemon (b) a rolling ball slows (c) a thrown ball comes down (d) rain falls to the ground
13. 13.💪 A force is a … (a) unit of time (b) push or a pull (c) kind of colour (d) type of sound
14. 14.💪 A box weighs 260 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
15. 15.💪 A cart is pulled to the right with 25 N and to the left with 10 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
16. 16.True or false: a tug of war is a push. (a) False (b) True
17. 17.Which of these is caused by friction? (a) rubbing hands warms them (b) pedalling a cycle (c) a river flows downhill (d) a compass needle turns
18. 18.💪 A cart is pulled to the right with 30 N and to the left with 45 N. Which way does the net force act? (a) to the right (b) no net force (c) to the left
19. 19.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
20. 20.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
21. 21.True or false: pushing a swing is a pull. (a) False (b) True
22. 22.Which of these is caused by magnetic force? (a) a fridge magnet sticks (b) an apple falls down (c) brakes stop a bicycle (d) a river flows downhill
23. 23.💪 A box weighs 120 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
24. 24.💪 Is pushing a trolley a push or a pull? (a) a pull (b) a push
25. 25.💪 In which unit do we measure force? (a) newton (N) (b) second (s) (c) litre (L) (d) metre (m)
26. 26.💪 Which force is at work: an apple falls down? (a) magnetic force (b) muscular force (c) friction (d) gravity
27. 27.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
28. 28.💪 A box weighs 310 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
29. 29.Which of these is caused by gravity? (a) squeezing a lemon (b) lifting a school bag (c) pedalling a cycle (d) an apple falls down
30. 30.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
31. 31.True or false: drawing up a well bucket is a push. (a) False (b) True
32. 32.💪 Which force is at work: rubbing hands warms them? (a) magnetic force (b) gravity (c) muscular force (d) friction
33. 33.💪 Is plucking a mango a push or a pull? (a) a push (b) a pull
34. 34.💪 Two children push a box to the right, one with 85 N and the other with 30 N. What is the net (total) force on the box, in newtons?
35. 35.💪 Two children push a box to the right, one with 100 N and the other with 80 N. What is the net (total) force on the box, in newtons?
36. 36.Which of these is caused by muscular force? (a) a magnet picks up pins (b) a rolling ball slows (c) brakes stop a bicycle (d) squeezing a lemon
37. 37.Which of these is caused by magnetic force? (a) an apple falls down (b) a river flows downhill (c) squeezing a lemon (d) a compass needle turns
38. 38.Which of these is caused by magnetic force? (a) an apple falls down (b) a thrown ball comes down (c) a rolling ball slows (d) a magnet picks up pins
39. 39.💪 Which can a force NOT do? (a) change its shape (b) stop it moving (c) change its colour (d) start it moving
40. 40.True or false: closing a drawer is a push. (a) True (b) False

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