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Work
Machines
Energy
Simple Machines
Miscellaneous
100
This is when work is done on an object.
When a force is exerted on an object and that object moves some distance in the direction of the force?
100

The force being applied to a machine.

What is input force?

100
This is the definition of energy.
What is the ability to do work or cause change?
100
This is the definition of a machine.
What is a device that allows you to do work in a way that is easier and more effective?
100

Add its kinetic and potential energies.

How would you calculate an object's mechanical energy?

200

This is the unit for work.

What is a Joule?

200

The force applied by a machine.

What is output force?

200
This is the unit for energy.
What is a Joule?
200
These are the six simple machines.
What are lever, pulley, wheel and axle, inclined plane, screw, and wedge?
200
This is the Law of Conservation of Energy.
What is energy cannot be created or destroyed, only transferred?
300
This is the equation to find work.
What is Work = Force X Distance
300

Change the amount of force you exert or the distance over which you exert the force.

What do machines do?

300
This is the energy of motion.
What is kinetic energy?
300
In this simple machine, Mechanical Advantage increases as the sections of rope increase.
What is a pulley?
300
This is the energy found in rubber bands and springs.
What is elastic potential energy?
400
True/False: Work is done when you carry your book bag to school.
What is false?
400
You push a box using 10 Joules of work in 5 seconds. This is your power.
What is 2 watts?
400

Energy stored in a chemical bonds.

What is Chemical Potential Energy?

400

A wedge moves to do work, while an inclined plane stays still to do work.

The difference between a wedge and an inclined plane.

400
This is the fixed point at which a lever pivots or rotates on.
What is a fulcrum?
500
You need to push a box that weighs 20 N a distance of 5 meters. This is how much work you did on that box.
What is 100 Joules?
500
You carry a box that weighs 5 N a distance of 5 Meters in 3 seconds. This is your power.
What is 0 watts? (No work = No power!)
500

Rubbing your hands together on a cold day to stay warm.

What is an example of mechanical energy into thermal energy?

500
A wheel barrow is an example of this type of lever.
What is second class lever?
500
Where is effort (input force) located on a third class lever?
What is in the middle?