question What is the name for the point in a system where the entire mass can be considered to be concentrated for purposes of calculations

Science

What is the name for the point in a system where the entire mass can be considered to be concentrated for purposes of calculations?

A. Center of Mass
B. Center of Gravity
C. Center of Rotation
D. Center of Inertia

The center of gravity is the point where the entire mass can be concentrated.

What is the chemical formula for calcium carbonate?

A. CaO
B. CaCO3
C. Ca(OH)2
D. CaSO4

What is the process by which a star converts hydrogen into helium, releasing energy in the form of light and heat?

A. Nuclear fission
B. Nuclear fusion
C. Stellar evolution
D. Nebula formation

Which element is present in all organic compounds?

A. Carbon
B. Nitrogen
C. Oxygen
D. Hydrogen

What is the force that opposes the motion of objects through a fluid (liquid or gas)?

A. Tension
B. Friction
C. Buoyancy
D. Drag

Which type of energy is associated with the motion of an object?

A. Kinetic Energy
B. Potential Energy
C. Mechanical Energy
D. Thermal Energy

What is the term for the amount of matter in an object, often measured in kilograms?

A. Mass
B. Weight
C. Density
D. Volume

What is the process of converting a gas to a liquid called?

A. Evaporation
B. Condensation
C. Sublimation
D. Deposition

Which of the following is a greenhouse gas?

A. Oxygen
B. Nitrogen
C. Carbon Dioxide
D. Hydrogen

What is the process by which a star, much larger than our Sun, ends its life in a massive explosion?

A. Supernova
B. Nebula
C. Black hole
D. Red giant

In the periodic table, which group do the noble gases belong to?

A. Group 1
B. Group 2
C. Group 17
D. Group 18