Main changes in energy stores when a diesel engined car accelerates on a level road?
WeyPhys KS3 Energy 1

Flashcard
•
Physics
•
3rd Grade
•
Hard

Robert Nejako
FREE Resource
Student preview

19 questions
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1.
FLASHCARD QUESTION
Front
Back
Chemical to Kinetic
2.
FLASHCARD QUESTION
Front
When a rollercoaster reaches the top of its climb and falls back down, the energy stores change from...
Back
Gravitational to Kinetic
3.
FLASHCARD QUESTION
Front
When a bungee jumper falls, what are the main changes in energy stores?
Back
Gravitational to Kinetic to Elastic
4.
FLASHCARD QUESTION
Front
Whenever energy changes from one energy store to another, some energy gets "wasted" as...
Back
Thermal
5.
FLASHCARD QUESTION
Front
A kettle moves 2000 J of thermal energy into the water's thermal energy store for every 2500 J of electrical energy that flows into it. What is the kettle's efficiency?
Back
0.8
6.
FLASHCARD QUESTION
Front
A petrol lawnmower has an efficiency of 0.25. If its chemical energy store decreases by 200 kJ, how much energy moves to the kinetic energy store?
Back
50,000 J
7.
FLASHCARD QUESTION
Front
What can never happen to energy?
Back
It cannot be created or destroyed
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