Machines
This simple machine is a slanted surface used to raise objects.
What is an inclined plane?
Formula used to calculate work.
What is W=Fd
Power measures how fast this is done.
What is work?
This unit is used to measure work.
What is a joule?
The formula for power.
What is P=W/T
A wheel with a rope used to lift objects.
What is a pulley?
A student lifts a backpack with 15 N of force to a shelf 4 m high.What is the formula (with numbers)?
What is W= 15x4
A blender does 120 J of work in 6 seconds. Find the power.
What is 20 W?
A person pushes a cart with 30 N of force for 6 m. Find the work done.
What is 180 J?
A motor does 400 J of work in 8 seconds. Find the power.
What is 50 W?
This simple machine consists of a bar that pivots on a fulcrum.
What is a lever?
A mover pushes a couch with 45 N of force for 7 m. Find the work done.
What is 315 J?
A machine does 300 J of work in 10 seconds.What is the formula (with numbers)?
P=300/10
A student pushes a chair with 10 N of force for 3 m. Find the work done.
What is 30 J?
A machine does 900 J of work in 15 seconds. Find the power.
What is 60 W?
A wedge is made from this simple machine.
What is an inclined plane?
If an object does not move, this amount of work is done on it.
What is 0 joules.
This unit is used to measure power.
What is a watt?
A machine lifts an object using 90 N of force over 5 m. Find the work done.
What is 450 J?
An elevator does 1,500 J of work in 30 seconds. Find the power.
What is 50 W?
This simple machine is often called a “twisted inclined plane.”
What is a screw?
A worker pushes a crate with 75 N of force across a floor for 12 m. Find the work done.
What is W= 75x12=900J
A motor produces 500 J of work in 5 seconds. Find the power.
What is P=500/5=100W
A machine uses 120 N of force to move a box 15 m. Find the work done.
What is 1,800 J?
A crane does 2,000 J of work in 25 seconds. Find the power.
What is 80 W?