Physics Quiz

Radiation is the transfer of energy in the form of particles.

• True

• False

A hot object has more thermal energy than a similar cold object only because of greater kinetic energy.

• True

• False

Heat is a measure of the average kinetic energy of all the particles in an object.

• True

• False

The amount of thermal energy transferred between objects depends only on their masses and initial and final temperatures.

• True

• False

In a vacuum flask, the vacuum helps in reducing heat loss due to radiation.

• True

• False

Conduction is the transfer of energy by movement of flowing matter.

• True

• False

In an internal combustion engine, fuel burns outside the engine in chambers called cylinders.

• True

• False

Solar energy can be changed into thermal energy without any work being done.

• True

• False

The magnitude of one degree Celsius is the same as one Kelvin.

• True

• False

Refrigerators work because the heat flows spontaneously from warmer food to the colder air inside the refrigerator.

• True

• False