• Identify force hold the protons and neutrons together inside the nucleus of an atom.

• Identify the three simplest elements in the universe

• Through what process did helium form from hydrogen.

• What are the negatively charged sub-atomic particles that travel around the nucleus of an atom at the speed of light?

• Identify the force that between oppositely charged particles (protons (+) and electrons(-) of an atom)

• A ball rolls down a hill. Is this a transformation or transfer?

• Identify the place in the universe where heavy elements (e.g copper, gold) were formed.

• Identify the process causes stars to burn.

• Draw a lithium atom.– Show the positions and charges of all sub-atom

particles.

• In the equation E=mc2, what does m stand for?

• What happens to the color of light if the source of these waves are moving away from you?

• What happens to the wavelength of light waves if the source of these waves are moving away from you?

• Identify the energy of movement.

• Food is an example of what type of energy

• A ball on the top of a hill has what type of energy.

• The process of photosynthesis plants use light energy and convert it into sugar. Is this change in energy a transfer or transformation?

• An observed change in the wavelength of a wave when the source of the wave is in motion relative to the observer.

• Evidence that the universe is still expanding, based on the color of light emitted by stars and galaxies.

• The law that states energy cannot be created or destroyed.

Put in the correct order.

A. Formation of the solar systemB. Formation of massC. Formation of earthD. First galaxiesE. First humansF. Dinosaurs went extinctG. First life on earth

• Attraction between any two objects with mass?