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WorksheetsPhysics Year 8- Energy
Total questions: 11
Worksheet time: 7mins
Energy is:
food
the ability to do work and change
a psychological function
the ability to do work
everything in the universe
Physics unit of energy
calorie
Calorie
Kilowatt
Joule
50kJ= how many J
(a)
2 main types of energy:
gravitational
potential
kinetic
motion
none of these
The types of kinetic energy
heat, sound, motion, electrical
nuclear, motion, heat, light, sound
chemical, motion, light, sound
motion, light, heat, sound
motion, light, heat, sound, electrical
Types of potential energy
gravity, elctronic, food
nuclear, gravitational, chemical, elastic
gravitational, nucleus, chemistryical, rubber
elastic, gravitational
others
A toaster
Transfer
Transformation
Neither
Both
Hitting a ball with a bat during cricket.
Transfer
Transformation
Neither
Both
Why does a ball stop rolling, even though the Law of Conservation of Energy says it should keep going forever
it gets tired
waste energy
Law of Friction
Law of Depletion of Energy
Which of these don't help reduce energy usage?
jumpers
Using electrical instead of batteries
using fans
close windows/doors
Which of these are non- renewable energy sources?
sun
coal
geothermal
gas
