Energy White Board Review Pick up a white board, marker, paper towel and a calculator

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?