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CBSE Notes 2011-2012 » IX-Science-Term2

Work and Energy

60 W means that the device will use 60 joule of energy in hour.

Multiple choice question

60 W means that the device will use 60 joule of
energy in hour.

A. We do not work as we push a wall. B. A raised hammer can deliver more kinetic energy. C. Solar en...

Multiple choice question

A. We do not work as we push a wall.
B. A raised hammer can deliver more kinetic energy.
C. Solar energy is a form of hydal energy

A. Streched bow has potential energy. B. Catapult has kinetic energy.

Multiple choice question

A. Streched bow has potential energy.
B. Catapult has kinetic energy.

Which of the following energy cannot be completely converted into other forms due to the transmissio...

Multiple choice question

Which of the following energy cannot be completely
converted into other forms due to the transmission
system ?

On a 5000 g mass a force of 3 N acts at an angle of 60

Multiple choice question

On a 5000 g mass a force of 3 N acts at an angle of
60

In an oscillating simple pendulum,

Multiple choice question

In an oscillating simple pendulum,

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