Physics Final Review Part 1 2024

Front

What happens to the total momentum of a system when two cars collide?

Back

Momentum is conserved.

Tags

NGSS.HS-PS2-2

Front

The force that one surface exerts on another where the two rub against each other is called _____________.

Back

friction.

Front

What does the law of universal gravitation state about any two objects in the universe that have mass?

Back

They attract each other.

Tags

NGSS.MS-PS2-4

Front

What is the formula for calculating momentum?

Back

Momentum = mass x velocity

Front

If a bicyclist travels 30 kilometers in two hours, what is her average speed?

Back

15 km/hr.

Front

Define momentum in physics.

Back

Momentum is the product of an object's mass and its velocity.

Tags

NGSS.HS-PS2-2

Front

What is the unit of momentum?

Back

Kilogram meter per second (kg·m/s).

Front

What is friction?

Back

Friction is the resistance that one surface or object encounters when moving over another.

Front

What is the relationship between mass and gravitational force according to the law of universal gravitation?

Back

The gravitational force increases with the mass of the objects.

Tags

NGSS.MS-PS2-4

Front

What is the formula for calculating average speed?

Back

Average speed = total distance / total time.