Flashback 34

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). Hot air balloons rise because the air inside them is heated, causing it to become less dense and rise.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between two objects. For example, when a metal spoon is placed in a hot pot, heat transfers from the pot to the spoon.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion. Any object that is moving has kinetic energy, which depends on its mass and speed.

Front

What is heat?

Back

Heat is the movement of thermal energy from warmer objects to cooler objects. It is a form of energy that can be transferred between substances.

Front

What is static electricity?

Back

Static electricity is the build-up of electric charge on the surface of objects. Examples include clothes clinging together after being in the dryer and lightning.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. An example is the heat from the sun reaching the Earth.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a rock at the top of a hill has potential energy due to its height.

Front

What is the difference between conduction and convection?

Back

Conduction occurs through direct contact, while convection involves the movement of fluids. Conduction heats a metal spoon, while convection heats air in a room.

Front

What is an example of conduction?

Back

An example of conduction is when you touch a hot stove and heat transfers from the stove to your hand.

Front

What is an example of convection?

Back

An example of convection is boiling water, where hot water rises to the top and cooler water sinks to the bottom.