Standard 7 - Energy

Front

What is potential energy?

Back

Stored energy.

Front

What is radiation?

Back

Heat moving through empty space.

Front

What is the specific heat (c) of copper?

Back

0.39 J/g °C.

Front

How do you calculate temperature change (∆t) when heat (Q) is added?

Back

∆t = Q / (m * c), where m is mass and c is specific heat.

Front

What is kinetic energy?

Back

Moving energy.

Front

How many Joules of energy are required to change 10 grams of water from 20 °C to 90 °C?

Back

2800 J.

Front

What is the formula for calculating kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the unit of energy in the International System of Units (SI)?

Back

Joule (J).

Front

What is the relationship between heat and temperature?

Back

Heat is the energy transferred due to temperature difference.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed.