WorksheetsMechanical energy
Total questions: 8
Worksheet time: 10mins
Indicate if the following phrases are true (T) or false (F): Total energy is conserved in an isolated system.
True
False
Indicate if the following phrases are true (T) or false (F): Diverse forms of energy cannot be converted into each other.
True
False
Indicate if the following phrases are true (T) or false (F): Thermal equilibrium is achieved when two bodies share the
same temperature.
True
False
Complete the following sentences with the appropriate words: If two bodies are isolated from their interacting environment, the energy that one loses is equal to...
the energy that the another gains
the addition between the energy of the two objects
None of the above
thermal energy
A room is at a temperature of 10 °C and it is at thermal equilibrium with the objects in it. If we turn the heat on the thermostat up to 25 °C, will the objects achieve thermal equilibrium again? At what temperature?
Yes, at 25°C
Yes, at 35°C
No, the temperature remains the same
None of the above.
A carriage on a rollercoaster has got a mass of 35 kg:
a) What is its mechanical energy when stationary at a height of 35 meters?
12 005 Joules
12 005
1225 Joules
1225
Indicate if the following phrases are true (T) or false (F): A wave is a perturbation that is propagated by the transportation of energy.
True
False
Indicate if the following phrases are true (T) or false (F): A wavelength is the distance only between two consecutive crests.
True
False
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