what do combustion engines need?
a spark and fuel
A _____ _______ is made of two or more simple machines
Compound machine
The _____ reduce friction and enable the cars _____ to move along the ground
Tyres, wheels
_____ connect two wheels. When one wheel turns the axle allows the other wheel to turn.
Axle
The two components of a wheelbarrow are _____ and ______
A wheel and lever
A cars engine converts _____ _____ into mechanical energy
Electrical or chemical energy
When components work together they form a ______
Mechanism
_____ are wheels, usually if different sizes, that work in pairs
Gears
To combine the force of two simple machines, the movement of the machines needs to be _____
Transmitted
____ and ______ transmit a force from one wheel to another.
Belt and chain
______ slow down and stop the cars movement
Brakes
______ clean the windscreen of rain and snow
Wipers
Modern machines have _____ different components
Many
Each _____ carries out a different function or role.
Component