Online Test — Simple Machines
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
easy
A pair of scissors uses two levers and two…
Ramps
Pulleys
Wheels
Wedges (blades)
Explanation: Scissor blades are wedges; the handles are levers.
Question 2 of 10
easy
A wheel turning on a rod through its centre is a wheel-and-…
Rope
Axle
Wedge
Lever
Explanation: A wheel and axle work together.
Question 3 of 10
easy
Two inclined planes joined to a sharp edge make a…
Wheel
Pulley
Wedge
Rope
Explanation: A wedge is like two slopes meeting at a sharp edge.
Question 4 of 10
easy
A ramp helps us move a heavy box into a truck using…
More force
Less force
No box
Only a rope
Explanation: A ramp lets us push loads up with less force.
Question 5 of 10
medium
Which of these is a lever?
A crowbar
A ramp
A ladder flat
A wheel alone
Explanation: A crowbar is a lever used to lift loads.
Question 6 of 10
medium
Using a tool to lift a heavy load with less force is an example of a machine making work…
Easier
Heavier
Hotter
Louder
Explanation: Machines reduce the force we need.
Question 7 of 10
easy
Simple machines help us by needing less…
Sound
Colour
Effort (force)
Light
Explanation: Machines let us do work with less effort.
Question 8 of 10
easy
A pulley is often used to draw water from a…
Well
Cloud
Tree
Star
Explanation: Pulleys help raise water buckets from wells.
Question 9 of 10
medium
A knife, an axe and a needle are all examples of a…
Pulley
Wedge
Lever
Wheel
Explanation: Their sharp points and edges are wedges.
Question 10 of 10
hard
Why is it easier to open a tin with a long-handled opener than a short one?
It is heavier
It is colourful
A longer arm needs less force
It is shorter
Explanation: A longer lever arm reduces the force needed.