Grade EOT review competition

The picture represents

• thermal expansion

• thermal contraction

What is happening to the fluid inside the thermometer in this image?

• vaporization

• Thermal expansion

• thermal contraction

• boiling

What is Thermal expansion?

• Is a decrease in a materials volume when temperature decreases

• The transfer of thermal energy between materials by the collisions of particles

• An increase in a materials volume when temperature increases

• Chicken fried rice

Can result from adding or removing thermal energy

• Explosion

• change in conservation

• change in newtons law

• change in state of ,matter

How does adding thermal energy to water in the solid state affect the molecules?

• Thermal energy begins to break the molecules apart and cause them to move.

• Thermal energy causes the molecules to move at an extremely rapid rate.

• Thermal energy causes the molecules to stay solid and not move.

Which area or areas of the graph above shows a change in the potential energy of the particles?

• a

• b and d

• a and c

• c

Charles law states that

• As Pressure goes up volume goes down

• As Volume goes up temperature goes up

• As Pressure goes up temperature goes up

• As Pressure goes down volume goes down

Electrons have a ............ charge

• positive

• negative

• neutral

How does the energy of an electron change when the electron moves closer to the nucleus?

• it stays the same

• it increases

• it decreases

• it doubles

A beaker contains a mixture of sand and small pebbles , what kind of mixture is it?

• homogenous

• heterogenous

• compound

• solution