The use of force to move an object a certain distance
100
A simple machine with no moving parts that is a straight slanted surface.
Inclined Plane
100
What is kinetic energy?
Energy of motion or moving energy
100
What is potential energy?
Energy of position or stored energy
200
When energy changes from one form to another.
Energy transfer
200
What is the equation for work?
Work = Force x distance
200
______________ force is how much you are lifting.
Resistance
200
What physical quantities does kinetic energy depend on?
Mass and Speed
200
What physical quantities does potential energy depend on?
Mass and Height
300
What is the Law of Conservation?
Energy cannot be created or destroyed.
300
What is the unit for work?
Joules (J)
300
There is always friction between moving parts. _________ can make a machine more efficient by reducing friction.
Oil
300
When an object reaches its highest velocity
Maximum kinetic energy
300
As speed increases, potential energy ________________.
Decreases
400
How does the Law of Conservation account for "lost energy"?
**hint: what is "lost energy" transformed into**
"Lost energy" becomes thermal energy
400
William used 65N to run a 50m dash. How much work did he do?
65N x 50m = 3,250J
400
_____________ and ___________ energies are always transferred between machines.
Thermal and Mechanical energies
400
As _________ decreases, kinetic energy decreases.
Mass OR Speed
400
Explain maximum potential energy.
Maximum potential energy is when an object is at its lowest velocity/ speed.
500
Explain the relationship between kinetic energy and potential energy.
Kinetic energy and potential energy are both inverse. For example, if kinetic energy increases, potential energy will have to decrease.
500
Explain the relationship between work and force.
Work and force are directly proportional. For example, when force increases, work also increases.
500
Explain how simple machines make work easier.
Simple machines make work easier by changing the amount of force needed to move the object, or by changing the amount of distance the object has to travel.
500
What are the forms of kinetic energy?
1. Radiant energy
2. Thermal energy
3. Motion energy
4. Sound Energy
5. Electrical Energy
500
What are the forms of potential energy?
1. Chemical Energy
2. Mechanical energy
3. Nuclear Energy
4. Gravitational Energy