ZONK! Energy Edition

Directions 1)Each team will take turns choosing a number. The number can lead to questions worth 5, 10, and 15 points or it can lead to a ZONK or a DOUBLE ZONK. 2)If a question appears, the team must answer it correctly to earn the points for that question. 3)If a ZONK appears, the team will lose their turn. 4)If a DOUBLE ZONK appears, the team will lose their turn and lose 10 points! 5)When all the questions have been asked, the game is over & the team with the most points wins. Have fun!

Great job! Thanks for playing!

The 2 factors that affect an object’s kinetic energy are mass & speed.

Chemical & nuclear energy are similar because they are both forms of potential energy. They are different because chemical energy is stored in chemical bonds while nuclear energy is stored in the nucleus of an atom.

The law of conservation of energy states that when one form of energy is transformed to another, no energy is lost in the process.

ZONK! Lose a turn

ZONK! Lose 10 points

When you turn on an iron, electrical energy is transformed into thermal energy.

Energy is the ability to do work or cause change.

If the speed of an object increases, its kinetic energy increases. If the mass of an object increases, its kinetic energy increases.

Gravitational potential energy is related to an object’s height Elastic potential energy is associated with objects that can be compressed or stretched

Chemical energy – stored in chemical bonds. Examples: battery, food Electrical energy – energy of electric charges. Examples: lightning, power lines Electromagnetic (or radiant) energy – a form of energy that travels through space in waves Examples: visible light, microwaves, radio waves, UV rays Mechanical energy – associated with the motion, position, or shape of an object Examples: moving car, a book sitting on a shelf, sound Nuclear energy – stored in the nucleus of an atom Examples: fission & fusion Thermal energy – the total kinetic & potential energy of the particles in an object Examples: sun, fire

ZONK! Lose a turn

The 2 states of energy that exist are potential & kinetic

ZONK! Lose A turn

The hat’s gravitational potential energy = 5 N × 1.5 m = 7.5 joules

50 joules joules = 287 joules

ZONK! Lose 10 points

Nuclear fission & fusion are similar because they both release large amounts of energy They are different because nuclear fission releases energy when a nucleus splits apart and nuclear fusion releases energy when nuclei join together

When you rub your hands together, mechanical energy is being transformed into thermal energy.

Some energy is transformed to thermal energy so the ride does not have enough energy to make it up a hill that tall again.

Climber A Climber B Climber C Climber D

GPE = weight × height Climber A = 600 N × 4 m = 2,400 J Climber B = 600 N × 1 m = 600 J Climber C = 400 N × 4 m = 1,600 J Climber D = 400 N × 1 m = 400 J In order from greatest GPE to least GPE: A, C, B, D

Kinetic energy of dog = ½ × 20 kg × 2 m/s 2 40 J Kinetic energy of girl = ½ × 60 kg × 2 m/s J

A roller coaster has the greatest gravitational potential energy at the top of the first hill. It has the greatest kinetic energy at the bottom of that first hill.

Remember: kinetic energy depends on mass & speed. It looks like all 3 vehicles are going the same speed, so you had to look at the mass to determine their kinetic energies. The vehicles in order of increasing kinetic energy: 1.Motorcycle 2.Blue car 3.Red car

Work is the transfer of energy. Power is the rate at which energy is transferred.

A B C

A – gravitational potential energy B – kinetic energy C – gravitational potential energy A B C