Energy and Heat

Front

What is the formula to calculate heat energy required to raise the temperature of any substance?

Back

Q = mc∆t, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ∆t is the change in temperature.

Front

Where is the most kinetic energy found in a roller coaster?

Back

At the bottom of the hill, where the potential energy is converted to kinetic energy.

Front

What is a conductor?

Back

A material that allows heat to move through it easily, such as metals.

Front

How does thermal energy flow in a glass of iced tea?

Back

Thermal energy flows from the warmer tea to the colder ice.

Front

What is the energy transformation that occurs when a child eats spaghetti and then plays with toys?

Back

The transformation is from chemical energy (from food) to mechanical energy (used in movement).

Front

What is the definition of thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is specific heat capacity?

Back

Specific heat capacity is the amount of heat required to raise the temperature of one kilogram of a substance by one degree Celsius.

Front

What is the difference between conduction, convection, and radiation?

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.

Front

What happens to the kinetic energy of particles as temperature increases?

Back

As temperature increases, the kinetic energy of the particles also increases.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.