1. Newton stated that every mass attracts every other mass with a force that is directly proportional to the product of the two interacting masses. This is commonly known as:

- gravity, -power, - work, - energy

2. When you cook something solid in a metal pot using a gas stove, what is happening?

- convection, - conduction, - radiation, - thermal inertia

3. The density of solids, liquids and gases is the result of:

- volume divided by mass, - mass divided by volume, - the number of cubic centimeters divided by the number of grams of the sample, - the gravitational force divided by the area 4. The air currents in your oven that bake your cookies are an example of:

- convection, - conduction, - radiation, - thermal inertia