Physics — Forces and Energy

Density and floatingSign up

Use density to explain why objects float or sink in water.

Heat, temperature and thermal transferSign up

Describe the difference between heat and temperature. · Know that energy is conserved, meaning it cannot be created or destroyed. · Know that thermal energy will always transfer from hotter regions or objects to colder ones, and this is known as heat dissipation. · Describe thermal transfer by the processes of conduction, convection and radiation. · Explain cooling by evaporation.