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

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Presentation transcript:

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?

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