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Energy White Board Review
Pick up a white board, marker, paper towel and a calculator.
Definitions
__________ is involved in every change that occurs.
Energy
Definitions
__________ potential energy is stored in the bonds of compounds.
Chemical
Definitions
__________ potential energy is stored in objects above the Earth’s surface.
Gravitational
Definitions
__________ potential energy is stored in objects that can stretch or compress.
Elastic
Definitions
__________ states that energy can’t be created or destroyed.
The Law of Conservation of Energy
Units of Measurement
Identify the unit used to measure the following: mass
kg
Units of Measurement
Identify the unit used to measure the following: Kinetic energy
Joules
Units of Measurement
Identify the unit used to measure the following: Velocity
m/s
Units of Measurement
Identify the unit used to measure the following: Height
m
Units of Measurement
Identify the unit used to measure the following: Gravitational Potential Energy
Joules
Kinetic vs. Potential
Identify the following as either kinetic or potential energy:
A stretched rubber band
Potential
Kinetic vs. Potential
Identify the following as either kinetic or potential energy:
Standing at the top of a ladder
Potential
Kinetic vs. Potential
Identify the following as either kinetic or potential energy:
Running
Kinetic
Kinetic vs. Potential
Identify the following as either kinetic or potential energy:
A battery
Potential
Kinetic vs. Potential
Identify the following as either kinetic or potential energy:
Food
Potential
Kinetic vs. Potential
Identify the following as either kinetic or potential energy:
A hockey puck sliding on the ice
Kinetic
Kinetic & Potential
What happens to the kinetic energy of a moving object if the mass is increased?
Kinetic energy increases
Kinetic & Potential
What happens to the potential energy of an object if the mass is decreased?
Potential energy decreases
Kinetic & Potential
What happens to the potential energy of an object if the height is increased?
Potential energy increases
Kinetic & Potential
What happens to the kinetic energy of a moving object if the velocity is decreased?
Kinetic energy decreases
What point on the pendulum diagram represents kinetic energy being maximized?
Point C
What point on the pendulum diagram represents potential energy being maximized?
Point A
What point on the pendulum diagram represents KE = PE?
Point B
Calculations
What is the gravitational potential energy of a 5 kilogram book at a height of 3.4 meters?
Calculations
How high of the ground is a 42 kg rock if it has a gravitational potential energy of 350 Joules?
Calculations
What is the kinetic energy of a 2.4 kg toy car traveling at a speed of 2.1 m/s?
