Engineering Worksheet: Forces
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.
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- 1.💪 A cart is pulled to the right with 85 N and to the left with 75 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
- 2.💪 Which force is at work: a compass needle turns? (a) muscular force (b) friction (c) gravity (d) magnetic force
- 3.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) metre (m) (d) litre (L)
- 4.💪 Two equal forces push on a box from opposite sides. They are … (a) doubled (b) balanced (c) gravity (d) unbalanced
- 5.True or false: pulling up your socks is a pull. (a) True (b) False
- 6.💪 A bag has a mass of 31 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
- 7.💪 In a tug of war, one team pulls left with 30 N and the other pulls right with 10 N. What is the size of the net force, in newtons?
- 8.💪 A cart is pulled to the right with 95 N and to the left with 85 N. Which way does the net force act? (a) to the left (b) no net force (c) to the right
- 9.True or false: pushing a swing is a push. (a) False (b) True
- 10.💪 Two children push a box to the right, one with 40 N and the other with 70 N. What is the net (total) force on the box, in newtons?
- 11.Which of these is caused by magnetic force? (a) lifting a school bag (b) pedalling a cycle (c) a fridge magnet sticks (d) squeezing a lemon
- 12.💪 A force is a … (a) push or a pull (b) kind of colour (c) unit of time (d) type of sound
- 13.💪 Which force is at work: pedalling a cycle? (a) muscular force (b) gravity (c) friction (d) magnetic force
- 14.Which of these is caused by friction? (a) a magnet picks up pins (b) a rolling ball slows (c) a fridge magnet sticks (d) a compass needle turns
- 15.True or false: closing a drawer is a pull. (a) False (b) True
- 16.💪 A cart is pulled to the right with 45 N and to the left with 60 N. Which way does the net force act? (a) no net force (b) to the left (c) to the right
- 17.💪 Is pulling a cart a push or a pull? (a) a push (b) a pull
- 18.True or false: a tug of war is a pull. (a) False (b) True
- 19.True or false: pulling up your socks is a push. (a) False (b) True
- 20.True or false: hitting a cricket ball is a pull. (a) True (b) False
- 21.💪 Which can a force NOT do? (a) stop it moving (b) change its colour (c) start it moving (d) change its shape
- 22.💪 A box weighs 280 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 23.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
- 24.True or false: drawing up a well bucket is a push. (a) False (b) True
- 25.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 10 N. What is the size of the net force, in newtons?
- 26.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
- 27.💪 Is pressing a doorbell a push or a pull? (a) a pull (b) a push
- 28.Which of these is caused by gravity? (a) a magnet picks up pins (b) a river flows downhill (c) a rolling ball slows (d) a compass needle turns
- 29.💪 Two children push a box to the right, one with 85 N and the other with 25 N. What is the net (total) force on the box, in newtons?
- 30.Which of these is caused by muscular force? (a) a magnet picks up pins (b) squeezing a lemon (c) an apple falls down (d) a fridge magnet sticks
- 31.💪 In a tug of war, one team pulls right with 100 N and the other pulls left with 40 N. What is the size of the net force, in newtons?
- 32.True or false: pressing a doorbell is a pull. (a) True (b) False
- 33.💪 A box weighs 410 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 34.💪 In a tug of war, one team pulls right with 20 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
- 35.💪 A box weighs 570 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 36.💪 A box weighs 230 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 37.💪 Two children push a box to the right, one with 25 N and the other with 95 N. What is the net (total) force on the box, in newtons?
- 38.Which of these is caused by muscular force? (a) a thrown ball comes down (b) rain falls to the ground (c) lifting a school bag (d) a river flows downhill
- 39.💪 In a tug of war, one team pulls left with 60 N and the other pulls right with 40 N. What is the size of the net force, in newtons?
- 40.💪 A box weighs 510 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
Answer key
- to the right
- magnetic force
- newton (N)
- balanced
- True
- 310
- 20
- to the right
- True
- 110
- a fridge magnet sticks
- push or a pull
- muscular force
- a rolling ball slows
- False
- to the left
- a pull
- True
- False
- False
- change its colour
- 28
- a pull
- False
- 10
- a push
- a push
- a river flows downhill
- 110
- squeezing a lemon
- 60
- False
- 41
- 5
- 57
- 23
- 120
- lifting a school bag
- 20
- 51
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