Engineering Worksheet: Forces

Engineering lesson 9: Forces: push, pull and gravity · Set 461 · 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 muscular force? (a) squeezing a lemon (b) rubbing hands warms them (c) shoes grip the floor (d) a river flows downhill
2. 2.Which of these is caused by gravity? (a) a magnet picks up pins (b) a fridge magnet sticks (c) rain falls to the ground (d) lifting a school bag
3. 3.💪 Is kicking a football a push or a pull? (a) a push (b) a pull
4. 4.💪 Two equal forces push on a box from opposite sides. They are … (a) gravity (b) balanced (c) unbalanced (d) doubled
5. 5.💪 A force is a … (a) kind of colour (b) unit of time (c) type of sound (d) push or a pull
6. 6.💪 Two children push a box to the right, one with 25 N and the other with 30 N. What is the net (total) force on the box, in newtons?
7. 7.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
8. 8.💪 Which force pulls everything towards the Earth? (a) wind (b) magnetism (c) gravity (d) friction
9. 9.💪 Is hitting a cricket ball a push or a pull? (a) a push (b) a pull
10. 10.True or false: pressing a doorbell is a push. (a) False (b) True
11. 11.💪 In a tug of war, one team pulls right with 45 N and the other pulls left with 25 N. What is the size of the net force, in newtons?
12. 12.True or false: plucking a mango is a push. (a) False (b) True
13. 13.💪 A bag has a mass of 26 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
14. 14.True or false: pulling a cart is a push. (a) False (b) True
15. 15.💪 A box weighs 600 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
16. 16.Which of these is caused by gravity? (a) a rolling ball slows (b) a river flows downhill (c) brakes stop a bicycle (d) pedalling a cycle
17. 17.True or false: hitting a cricket ball is a pull. (a) False (b) True
18. 18.💪 A cart is pulled to the right with 30 N and to the left with 15 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
19. 19.Which of these is caused by muscular force? (a) pedalling a cycle (b) a fridge magnet sticks (c) rain falls to the ground (d) a river flows downhill
20. 20.💪 Which can a force NOT do? (a) start it moving (b) stop it moving (c) change its colour (d) change its shape
21. 21.True or false: drawing up a well bucket is a push. (a) False (b) True
22. 22.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
23. 23.💪 In which unit do we measure force? (a) second (s) (b) litre (L) (c) metre (m) (d) newton (N)
24. 24.💪 Two children push a box to the right, one with 20 N and the other with 10 N. What is the net (total) force on the box, in newtons?
25. 25.Which of these is caused by gravity? (a) a thrown ball comes down (b) pedalling a cycle (c) squeezing a lemon (d) lifting a school bag
26. 26.💪 Which force is at work: an apple falls down? (a) friction (b) muscular force (c) magnetic force (d) gravity
27. 27.Which of these is caused by muscular force? (a) a fridge magnet sticks (b) lifting a school bag (c) an apple falls down (d) a magnet picks up pins
28. 28.💪 A cart is pulled to the right with 70 N and to the left with 80 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
29. 29.💪 A cart is pulled to the right with 45 N and to the left with 40 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
30. 30.Which of these is caused by friction? (a) a fridge magnet sticks (b) squeezing a lemon (c) rain falls to the ground (d) rubbing hands warms them
31. 31.True or false: hitting a cricket ball is a push. (a) True (b) False
32. 32.💪 Which force is at work: squeezing a lemon? (a) muscular force (b) friction (c) gravity (d) magnetic force
33. 33.💪 A cart is pulled to the right with 40 N and to the left with 30 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
34. 34.💪 Which force is at work: pedalling a cycle? (a) friction (b) muscular force (c) magnetic force (d) gravity
35. 35.Which of these is caused by friction? (a) squeezing a lemon (b) brakes stop a bicycle (c) a compass needle turns (d) an apple falls down
36. 36.💪 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 left (b) to the right (c) no net force
37. 37.💪 Which force is at work: a fridge magnet sticks? (a) muscular force (b) friction (c) magnetic force (d) gravity
38. 38.💪 A bag has a mass of 39 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
39. 39.Which of these is caused by magnetic force? (a) a magnet picks up pins (b) brakes stop a bicycle (c) lifting a school bag (d) an apple falls down
40. 40.True or false: pulling a cart is a pull. (a) False (b) True

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