Physical Science Review

Heat energy can increase the rate of chemical changes, such as baking a cake faster by increasing the oven temperature.

Elements in the same group (column) of the periodic table have similar properties, such as Cl, Br, I, At.

Refraction is the bending of a wave as it passes from one medium to another, caused by a change in speed, such as light slowing down in water.

Potential energy is conserved; it decreases as the skier descends, converting to kinetic energy.

C6H12O6 is the chemical formula for glucose, which is a compound made of more than one element.

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

Kinetic energy is the energy of an object in motion, dependent on its mass and speed.

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

A chemical compound is a substance formed when two or more elements are chemically bonded together.

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.