Download Physical Science Study Guide Name____________ Dixon Chapter

Physical Science Study Guide
Dixon
Chapter 4 Energy
Name____________
Period _______
*Contrast kinetic and potential energy by the following means:
-by definition
-by formula
-by motion (give examples)
*How does speeding up or slowing down affect kinetic energy?
*How does friction relate to mechanical energy and thermal energy? Write a sentence using
all three terms.
*What are the units for the following measurements?
-mass
-energy
-thermal energy
-height
-acceleration of gravity
-speed
*What would doubling an object’s velocity do to its kinetic energy?
*Explain where chemical potential energy is stored?
*What is elastic potential energy?
*Give two examples of objects with different potential energies sitting next to each other on
a shelf.
*For two objects to have the same potential energy, what three things have to be identical?
*Give two examples of electrical energy being converted to thermal energy.
*Define mechanical energy.
*Write the law of the conservation of energy.
*What three things are used to calculate kinetic energy?
*How do you calculate potential energy?
*Define friction in terms of energy.
*What process in green plants produces chemical potential energy?
*Write out the formulas for kinetic energy and potential energy (include units)
*Use the equation KE=1/2m x v2 to calculate the kinetic energy of a 100kg cart moving at a
speed of 7 m/s?
*Use the equation GPE= m x 9.8m/s2 x h to calculate the gravitational potential of a 10-kg
sack of groceries on a shelf 1 m above the floor?