Question

which of the following best describes the mass of an object?
a) the amount of space an object takes up.
b) the force of gravity acting on an object.
c) the amount of matter an object contains.
d) the speed at which an object is moving.

newtons first law of motion describes inertia. what does inertia mean?
a) an object will always speed up.
b) an objects tendency to resist changes in its state of motion.
c) the force that pulls objects towards each other
d) the ability of an object to float in space

Explanation:

First Question (Mass Definition)

• Option a: Describes volume (space occupied).
• Option b: Describes weight (gravity - related force).
• Option c: Mass is the amount of matter in an object.
• Option d: Describes speed/velocity.

• Option a: Inertia is not about speeding up; it's about resistance to motion change.
• Option b: Inertia is an object’s tendency to resist changes in its state of motion (including rest or velocity).
• Option c: Inertia is not a force (gravity/attraction is a force, not inertia).
• Option d: Inertia is not about floating in space.

Answer:

c. The amount of matter an object contains.

Second Question (Inertia Definition)