Energy Test Practice

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

Front

Which object heats up faster: one with a higher or lower specific heat?

Back

An object with a lower specific heat heats up faster.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

What happens to the energy in an exothermic reaction?

Back

The energy of the products is lower than the energy of the reactants.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

In a chemical reaction, what does the letter 'D' typically represent?

Back

The energy of the products.

Front

What effect does adding heat have on particles in a substance?

Back

Adding heat causes the particles to speed up.

Front

What is the relationship between temperature and kinetic energy?

Back

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

Front

What is the formula for calculating heat energy (Q)?

Back

Q = m * c * ΔT, where m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat, meaning they are at the same temperature.