WCPSS Science Jam Practice

Front

What is heat transfer through radiation?

Back

Heat transfer through radiation is the process by which heat energy is transferred through electromagnetic waves, without the need for a medium. An example is getting warm in front of a portable heater.

Front

How can you compare materials to find out which transfers thermal energy best?

Back

You can compare materials by placing one end of each rod in very hot water to see which one becomes hot the fastest.

Front

What happens to a toy car when it moves from a smooth surface to a rough surface?

Back

The toy car slows down because friction increases when it moves from a smooth surface like wood to a rough surface like carpet.

Front

What environmental change would most likely decrease a polar bear's ability to survive?

Back

An increase in Earth’s temperature would most likely decrease a polar bear's ability to survive.

Front

What keeps Earth in orbit around the Sun?

Back

The Sun’s gravitational pull keeps Earth in orbit around it.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in an object, which is related to its temperature.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between two surfaces.

Front

What is gravitational pull?

Back

Gravitational pull is the force that attracts two bodies towards each other, such as the Earth and the Sun.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the difference between conduction and convection?

Back

Conduction is the transfer of heat through direct contact, while convection is the transfer of heat through the movement of fluids.