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.
NameDateTime takenScore ___ / 40
- 1.💪 A box weighs 430 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 2.True or false: pulling a cart is a push. (a) False (b) True
- 3.Which of these is caused by muscular force? (a) squeezing a lemon (b) a compass needle turns (c) a river flows downhill (d) rain falls to the ground
- 4.💪 Which force is at work: squeezing a lemon? (a) gravity (b) muscular force (c) friction (d) magnetic force
- 5.💪 Is closing a drawer a push or a pull? (a) a push (b) a pull
- 6.💪 In a tug of war, one team pulls left with 15 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
- 7.💪 A box weighs 290 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 8.Which of these is caused by friction? (a) shoes grip the floor (b) a magnet picks up pins (c) a fridge magnet sticks (d) rain falls to the ground
- 9.💪 Which force is at work: brakes stop a bicycle? (a) muscular force (b) magnetic force (c) gravity (d) friction
- 10.💪 Which force is at work: a rolling ball slows? (a) muscular force (b) magnetic force (c) gravity (d) friction
- 11.💪 A bag has a mass of 46 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
- 12.💪 Is a tug of war a push or a pull? (a) a push (b) a pull
- 13.💪 Two children push a box to the right, one with 65 N and the other with 30 N. What is the net (total) force on the box, in newtons?
- 14.💪 Is hitting a cricket ball a push or a pull? (a) a pull (b) a push
- 15.💪 A box weighs 150 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 16.💪 Which force is at work: rain falls to the ground? (a) gravity (b) muscular force (c) magnetic force (d) friction
- 17.💪 A box weighs 250 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 18.💪 In a tug of war, one team pulls left with 75 N and the other pulls right with 45 N. What is the size of the net force, in newtons?
- 19.💪 In a tug of war, one team pulls right with 65 N and the other pulls left with 15 N. What is the size of the net force, in newtons?
- 20.💪 Which force is at work: an apple falls down? (a) gravity (b) friction (c) magnetic force (d) muscular force
- 21.💪 In which unit do we measure force? (a) second (s) (b) newton (N) (c) litre (L) (d) metre (m)
- 22.Which of these is caused by magnetic force? (a) a compass needle turns (b) squeezing a lemon (c) a rolling ball slows (d) pedalling a cycle
- 23.💪 Is pushing a swing a push or a pull? (a) a pull (b) a push
- 24.💪 A cart is pulled to the right with 65 N and to the left with 65 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
- 25.💪 Two equal forces push on a box from opposite sides. They are … (a) unbalanced (b) gravity (c) balanced (d) doubled
- 26.💪 Two children push a box to the right, one with 55 N and the other with 10 N. What is the net (total) force on the box, in newtons?
- 27.True or false: plucking a mango is a push. (a) True (b) False
- 28.💪 A box weighs 490 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 29.True or false: pulling a cart is a pull. (a) True (b) False
- 30.Which of these is caused by gravity? (a) a magnet picks up pins (b) rain falls to the ground (c) lifting a school bag (d) rubbing hands warms them
- 31.💪 Is kicking a football a push or a pull? (a) a pull (b) a push
- 32.💪 Is pulling a cart a push or a pull? (a) a pull (b) a push
- 33.💪 A box weighs 140 N. Taking 1 kg to weigh about 10 N, what is its mass in kilograms?
- 34.True or false: closing a drawer is a push. (a) True (b) False
- 35.💪 A cart is pulled to the right with 20 N and to the left with 10 N. Which way does the net force act? (a) no net force (b) to the right (c) to the left
- 36.💪 A bag has a mass of 60 kg. Taking 1 kg to weigh about 10 N, what is its weight in newtons?
- 37.💪 In a tug of war, one team pulls left with 90 N and the other pulls right with 5 N. What is the size of the net force, in newtons?
- 38.Which of these is caused by muscular force? (a) a magnet picks up pins (b) rain falls to the ground (c) rubbing hands warms them (d) lifting a school bag
- 39.💪 Two children push a box to the right, one with 100 N and the other with 65 N. What is the net (total) force on the box, in newtons?
- 40.💪 In a tug of war, one team pulls right with 40 N and the other pulls left with 20 N. What is the size of the net force, in newtons?
Answer key
- 43
- False
- squeezing a lemon
- muscular force
- a push
- 10
- 29
- shoes grip the floor
- friction
- friction
- 460
- a pull
- 95
- a push
- 15
- gravity
- 25
- 30
- 50
- gravity
- newton (N)
- a compass needle turns
- a push
- no net force
- balanced
- 65
- False
- 49
- True
- rain falls to the ground
- a push
- a pull
- 14
- True
- to the right
- 600
- 85
- lifting a school bag
- 165
- 20
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