Picture This Crazy for Calculating Keeping it Simple It’s IdealWork It Out
What is a pulley?
What is a lever?
What is an inclined plane?
What is a wheel and axle?
What is a wedge?
A lever changes this to make work easier
What is direction?
An inclined plane changes this to make work easier
What is distance?
The formula used to calculate power
What is work/time or (force x distance)/time?
Work done when you use a 6 N force to push an object 8 m
What is 48 Joules?
Power needed to do 200 J of work in 20 seconds
What is 10 Watts?
An inclined plane wrapped around a cylinder
What is a screw?
The point on which a lever pivots
What is a fulcrum?
A simple machine with one narrow edge and one wider edge that is used to split objects apart
What is a wedge?
Example of a pulley
What is a weight machine, flagpole?
A wedge changes this to make work easier
What is direction?
Example of a lever
What is a seesaw, crowbar, paint can opener, screwdriver?
Example of a wedge
What is a knife, axe?
Example of a screw
What is the lid of a jar, metal screw, water bottle top?
Example of an inclined plane
What is a wheelchair ramp?
Example of a wheel and axle
What is a doorknob, bicycle tire, car wheels?
The SI units used to measure work
What are Joules?
A pulley changes this to make work easier
What is direction?
The rate at which work is done
What is power?
An example of doing work and an example of NOT doing work
Work: pushing a box up a hill, pulling a sled, moving a table, lifting a backpack Not work: pushing a skyscraper, playing tug of war if the rope never moves
A wheel and axle changes this to make work easier
What is distance?
Final Jeopardy 3 factors machines can change to make work easier an example of a machine that does each
Final Jeopardy Increase force Increase distance Change direction