Prep for 1st Semester Physics Final

Coulomb's and the gravitational law are similar. Which law indicates that the force could be attractive or repulsive and why?

• Coulomb's law describes a force that is repulsive or attractive because it is based on charges.

• The laws are similar because they both describe forces that can be repulsive and attractive.

• The law of gravitational forces describes the repulsion and attraction of matter.

• The laws are similar because neither law describes repulsion or attraction of charges.

Tags

NGSS.HS-PS2-4

Which statement best describes the effect of gravitational force between objects?

• The force of attraction between masses exists regardless of the distance of the objects.

• The force of attraction between masses becomes stronger the greater the distance.

• The force of attraction between masses depends on the gravity acting on it.

• The force of attraction between masses grows stronger when the masses are the same size.

Tags

NGSS.HS-PS2-4

A gravitational system has two objects with the same mass. Which change below would result in the smallest force between the objects?

• doubling the distance between the objects

• doubling one of the masses

• halving one of the masses

• halving the distance between the objects

Tags

NGSS.HS-PS2-4

Both fusion and fission change the structure of the nuclei. What is the main difference between the reactions?

• Fusion is a nuclear decay process; fission is a chemical reaction.
• Fusion occurs at room temperature; fission requires extreme heat.
• Fusion splits heavy nuclei; fission combines light nuclei.
• Fusion combines light nuclei; fission splits heavy nuclei.

Tags

NGSS.HS-PS1-8

Nuclear fusion is continually occurring on our sun. What is one product of that process?

• Oxygen
• Helium
• Carbon Dioxide
• Hydrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Weightlessness is due to _____.

• a balance of forces

• lack of air resistance

• presence of anti-gravity

• invisibility of gravity

Tags

NGSS.HS-PS2-4

How many masses are needed to have gravity?

• One mass
• Three masses
• Five masses
• Two masses

Tags

NGSS.HS-PS2-4

Weight is _____.

• the measure of the force exerted on an object due to temperature

• the measure of the force exerted on an object due to wind

• the measure of the force exerted on an object due to magnetism

• the measure of the force exerted on an object due to gravity

Tags

NGSS.HS-PS2-4

Like particles _____ and opposite particles _____.

• repel; attract
• merge, divide

• combine, separate

• attract; repel

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Charged particles are responsible for much of the cellular _____ in the world.

• replication

• movement

• energy

• growth

Tags

NGSS.HS-LS1-7