Front

What is the definition of force in physics?

Back

A force is a push or pull exerted on an object.

Front

What happens to two objects dropped from the same height at the same time in a vacuum?

Back

They will land at the same time regardless of their mass.

Tags

NGSS.MS-PS2-4

Front

What is net force?

Back

Net force is the vector sum of all the forces acting on an object, including both magnitude and direction.

Tags

NGSS.MS-PS2-2

Front

If two people push a box in the same direction with different forces, how do you calculate the total force?

Back

Add the magnitudes of the forces together.

Tags

NGSS.MS-PS2-2

Front

What does Newton's first law of motion state?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Tags

NGSS.MS-PS2-2

Front

What does Newton's second law of motion describe?

Back

It describes the relationship between force, mass, and acceleration, expressed as F=ma.

Front

How does increasing mass affect acceleration when a constant force is applied?

Back

Increasing mass will decrease acceleration.

Tags

NGSS.MS-PS2-2

Front

What is the principle behind Newton's third law of motion?

Back

For every action, there is an equal and opposite reaction.

Tags

NGSS.MS-PS2-1

Front

How does a rocket take off according to Newton's third law?

Back

The rocket expels gas downwards, and in response, the rocket moves upwards with equal force.