Online Test — Simple Machines
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
hard
Why is it easier to pull a load on a cart with wheels than to drag it?
Wheels roll and reduce friction
Carts are lighter
Dragging has no friction
Wheels add weight
Explanation: Wheels roll with much less friction than dragging.
Question 2 of 10
easy
A wheel with a rope over it used to lift loads is a…
Ramp
Lever
Wedge
Pulley
Explanation: A pulley uses a wheel and rope to lift loads.
Question 3 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.
Question 4 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 5 of 10
easy
A stiff bar that turns on a fixed point to lift loads is a…
Pulley
Lever
Wedge
Screw
Explanation: A lever is a bar that turns on a fixed point.
Question 6 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 7 of 10
medium
The six simple machines include the lever, the pulley and the…
Fridge
Television
Computer
Inclined plane
Explanation: The inclined plane is one of the simple machines.
Question 8 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 9 of 10
medium
Which is a wedge?
A see-saw
A wheel
A rope
An axe blade
Explanation: An axe blade is a wedge that splits wood.
Question 10 of 10
easy
The steering wheel of a car is an example of a wheel-and-…
Axle
Wedge
Rope
Ramp
Explanation: A steering wheel works as a wheel and axle.