Worksheetsscience
Total questions: 10
Worksheet time: 6mins
What is the equation for work?
W=Fd
A=Wp
P=W/t
W=d/F
What is the SI unit for power?
Watt
What
When
Where
What is a fulcrum?
The point where a lever pivots.
Something made of two simple machines.
You
A lever that only uses one motion.
What is a lever?
A machine made up of a bar that pivots about a fixed point.
A device that moves an object up and down.
A flat sloped surface.
A machine made of no simple machine.
What is an example of a wedge?
axe
pulley
wheel
lever
What is another name for 1 J/s?
a watt
work
energy
fork
What divided by Input force is mechanical advantage?
(a)
What causes efficiency to always be less than 100%?
friction
power
work
lubricant
Lubricant reduces what?
friction
mechanical advantage
efficiency
watt
What is efficiency?
output work over input work
power divided by joules
input force divided by input distance
watt times power
