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Chapter 3 Study Guide
1. The ability to do work is called energy.
Energy
Kinetic
Potential
Chemical
Radiant
Definition
The energy an object has because it is in
motion.
Stored energy that depends on the
interaction of objects, particles, or atoms.
Energy that is stored in and released
from the bonds between atoms.
The energy carried by electromagnetic
waves.
Thermal
The sum of the kinetic energy and potential
energy of the particles that make up an object
Mechanical
The sum of potential energy and kinetic
energy in a system of objects.
The form of energy associated with the
vibration or disturbance of matter
Energy stored in and released from the
nucleus of an atom
The energy that an electric current
carries is a form of kinetic energy.
The energy transferred by waves moving
through the ground.
Sound
Nuclear
Electrical
Seismic
Example
Walking, moving car
Kite in a tree
Fossil fuels, coal, oil, gasoline,
match, food you eat
Visible light, electromagnetic
spectrum
Heat
Windmill, rollercoaster, turbine
echolocation
Fission, fusion, power plant
Outlets, appliances
earthquake
2. How can you increase an object’s Kinetic Energy.
A. Increase Mass
B. Increase Velocity
3. A lit match produces which two types of energy? Radiant & Thermal
4. How would you calculate Mechanical Energy? KE + PE
5. State the Law of Conservation of Energy.
Energy cannot be created or destroyed by ordinary means. Energy can be transformed
from one form to another.
6. Compare and contrast energy transfer and energy transformation.
Energy transfer is when energy travels from one object to another. Energy
transformation is when energy is converted to another form.
7. Joe lifts a bag of cement 2 meters above the floor, using a force of 125 N. How much
work is being done on the bag of cement?
W=Fxd
W = 125N x 2m
W=250 J
8. Give an example of:
an inclined plane
lever
wheel and axle
Ramp
See Saw
Manual Pencil Sharpener
9. Give four energy transformations that happen when lighting a match.
Sliding Match across box → Mechanical Energy
Tip of Match (Sulfur) → Chemical Energy
Spark → Radiant Energy
Fire → Thermal Energy
10. Draw a picture of a ball falling in the air. Label the points of G.P.E. and K.E. Explain
the transformation between kinetic and potential energy.
C
B
A
D
E
The ball has Kinetic Energy at points A
& B. At Point C the energy is
transformed into potential energy.
Points D & E both have kinetic energy.
Point C has the greatest Potential
Energy & Point E has the most Kinetic
Energy (right before the ball goes into
his hand)
11. Organize all the forms of energy into the chart below.
Potential
1. Nuclear
2. Chemical
3.Gravitational PE
4. Elastic PE
Kinetic
1. Electric
Both KE + PE
1. Mechanical
2. Thermal
Waves
1.Seismic
2.Radiant
3. Sound