How does the work required to stretch a spring 2 cm compare with the work required to stretch it 1 cm?

a) same amount of work
b) twice the work
c) 4 times the work
d) 8 times the work


Ans: c) 4 times the work

Physics & Space Science

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What will be an ideal response?

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A. 15 kHz B. 1.3 kHz C. 0.87 kHz D. 57 kHz

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a. was manufactured inside stars. b. was added to the atmosphere by plant life. c. has grown more abundant since the origin of Earth. d. all of these e. none of these

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The temperature of a quantity of ideal gas in a sealed container is increased from 0°C to 819°C. What happens to the speed of the molecules with average kinetic energy of the gas as a result of this temperature increase?

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