Science- Physical Sciences Flashcards
0
Q
What is a second class lever?
A
Force multiplier
Move objects with less effort
1
Q
What is a first class lever?
A
Force multiplier
Move objects with less effort
2
Q
What is a third class lever?
A
Speed multiplier
Move a small load quickly with large effort
3
Q
How do you work out the mechanical advantage?
A
Load/effort
Measured in newtons
4
Q
What is an inclined plane?
A
A surface that is set to the horizontal
Ramps, wedges, screws
5
Q
What are gears?
A
A wheel and axel with teeth. The teeth of one gear fit between the teeth of another gear.
6
Q
What are wheels and axels?
A
A lever that can rotate
7
Q
What is a lever?
A
A simple machine that uses the turning effect of a force
