Physical Science Final Exam

The distance between an object and a reference point is the object's _____

• displacement

• neutral point

• position

• velocity

What is the equation for momentum?

• p = m/v

• f = ma

• f = m/a

• p = mv

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

Earth's _____ causes projectiles to follow a curved path.

• acceleration

• circumference

• gravity

• mass

Tags

NGSS.MS-PS2-4

If an object has a constant velocity, then it _____

• has a negative acceleration

• has an acceleration of zero

• has a positive acceleration

• is not moving

How does the gravitational force change as two objects move farther apart?

• It increases.

• It decreases.

• It remains constant.

• It is zero.

According to Newton's first law of motion, a moving object _____

• gradually slows and then stops

• has a constant positive acceleration

• transfers energy to its environment

• continues moving at the same velocity unless a force acts on it

A(n) _____ is a push or a pull that one body exerts on another.

• acceleration

• force

• motion

• velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the gravitational force exerted on an object called?

• centripetal force

• friction

• momentum

• weight

Tags

NGSS.MS-PS2-4

A 10-kg box sits on the floor. Approximately how high would you have to lift the box to increase gravitational potential energy by 350 J?

• 15 m

• 7.0 m

• 3.6 m

• 35 m

Tags

NGSS.MS-PS3-2

It takes 600 J of work to lift a crate straight up but 1200 J to push that crate up a ramp to the same height. What is the efficiency of the ramp?

• 30 percent

• 75 percent

• 50 percent

• 200 percent