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Miscellaneous
simple machines 1
simple machines 2
Vocabulary
compound machines
100
what does IMA stand for?
Ideal Mechanical advantage
100
What is a wheelbarrow an example of?
lever or wheel and axle
100
Name 2 examples of wedges.
knife blade, axe...
100
Force applied to a machine
effort force
100
What is a compound machine?
machine that combines two simple machines or more
200
Simple machines make the work you do _____?
Easier
200
Which simple machine is a rope wrapped around a wheel?
Pulley
200
A doorknob is an example of which simple machine?
Wheel and axle
200
Slanted surface or ramp.
inclined plane
200
Which simple machines are in scissors?
lever, wedge
300
What is the difference between work output and work input
Work output is work done by a machine and work input is work on a machine.
300
What force decreases the amount of efficiency a simple machine can have?
friction
300
Which type of pulley can only change the direction of the force?
Fixed Pulley
300
What is a resistance force?
force that opposes the effort force.
300
This is a tool that makes work easier to do.
What is Simple Machine?
400
Name the 6 simple machines.
lever, inclined plane, wheel and axle, pulley, screw, wedge.
400
The push or pull that turns a lever is the ____________.
What is the force?
400
What is a movable pulley?
This pulley can move as the rope is pulled through it.
400
What is a fixed point around which a lever pivots or turns?
fulcrum
400
What were early machines made out of?
stone
500
What is a block and Tackle an example of?
A pulley system
500
Which simple machine is an inclined plane wrapped around a cylinder.
Screw
500
The ability to do work.
What is energy?
500
Explain what a wheel and axle is.
two different sized wheels that turn together around the same point
500
Name 3 simple machines in a bike.
lever, screw, wheel and axle, pulley