Physics
Presentation
•
Physics
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4th - 6th Grade
•
Medium
D.A.G Team
Used 2+ times
FREE Resource
3 Slides • 3 Questions
1
Physics
2
Energy
Energy is required to do any kind of work or to produce a force.
A fuel is an object which is used to produce energy.
E.g.
Petrol is the fuel for cars.
Food is the fuel for humans.
Wood is the fuel for a fire.
The different types of energy are heat, light, sound, and electricity.
3
Quiz Time
Let's all play a quiz
4
Multiple Choice
Conservation of Energy Questions.
Example: A battery releases 100J of energy to a lamp. The lamp releases 80J of energy as light but it also releases heat energy. How much heat energy is released? Answer=20J ( If he total energy input is 100 and 80 is the output as light, that means that 20 J is left as heat 100J-80J=20J)..Now try these questions..
Question. A battery releases 200J of energy to a lamp. the energy is converted to heat and light. 50kJ is given out as heat. How much is released as Light?
100J
150J
200J
250J
5
Multiple Choice
Complete the statement about the principal of Conservation of Energy.
Energy can be changed for one form to another but the total amount of energy
always increases
always decreases
does not change
varies according to the reaction
6
Multiple Choice
The unit of energy is?
Watt
Kilojoule
Kilogramme
Volt
Physics
Show answer
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