Show:
Simple Machines
Complex Machines
Simple Machines
Work
Power
100
A machine that moves with only one movement
A simple machine
100
What type of machine is made up of 2 or more simple machines.
A complex machine or compound machine
100
True or False : A large stick used to move a heavy rock is a simple machine.
True
100
What is the formula for work
W= FxD
100
The formula for power is
P= W/T
200
What simple machine would the bottom of a light bulb be considered?
A screw
200
What two simple machines does the wheel barrow use?
a lever and wheel and axle
200
How many simple machines are there?
SIX
200
______ is done when a force causes an object to move in the same direction that the force is applied
Work
200
Power is how __________ work is done.
Quickly
300
A wheel and axle with a rope attached is a
Pulley
300
True or False: A bike is an example of a complex machine
True
300
A crowbar is an example of which type of simple machine
A lever
300
A painter lifts a can of paint that weighs 40 N a distance of 2 m. How much work does he do? Hint: to lift a can weighing 40 N, the painter must exert a force of 40 N.
80 J
300
You do 100 J of work in 10 s. How much power did you use?
10 W
400
A snow shovel is an example of a
Lever
400
Name the 6 different simple machines that can make up a complex machine
Pulley, Lever, Wheel & Axle, Screw, Inclined Plane, Wedge
400
A crowbar is wedges under a lid of a wooden crate. When the crowbar is pushed down to lift the lid up, how is the crowbar being used?
As a lever
400
A ________ is a push or pull
force
500
A broom is a lever. Where is the fulcrum?
Your hand
500
A tire on a car is an example of what simple machine
Wheel and axle
500
All objects that have _______ can do work.
Energy