EASY
8th ICSE
IMPORTANT
Earn 100

Name the type of energy (kinetic or potential) possessed by the following:

(g) A stretched rubber band.

50% studentsanswered this correctly

Important Questions on Energy

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B
Give an example to show the conversion of potential energy to kinetic energy when put in use.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B
State the energy changes that occur in a watch spring while it unwinds.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B

Give reasons for the following:

(a) No work is done if a man is pushing against a wall.

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B

Give reasons for the following:

(b) Hammer drives a nail into the wood only when it is lifted up and then struck.

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B

Give reasons for the following:

(c) A horse and a dog are running with the same speed. Which one of them has more kinetic energy than the other.  

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B

Give reasons for the following:

(d) A teacher moving around in the class is doing work but a child standing and reading a book is not doing any work.

MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B
State the energy changes in an electric bulb while in use.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q B
State the energy changes in an electric oven while in use.