8th Grade Semester Exam Review

In physical science, a push or a pull is called a(n)

• force

• acceleration

• inertia

• motion

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

When an object's distance from another object is changing,

• it is in motion.

• it is speeding.

• it has a high velocity.

• it is accelerating.

A place or object used for comparison to determine if something is in motion is

• a position

• a reference point

• constant

• velocity

The force of gravity on a person or object at the surface of a planet is known as

• mass.

• inertia.

• air resistance.

• weight.

If you were on the moon, your weight would be roughly what fraction of your weight on Earth?

• 1/3

• 1/4

• 1/5

• 1/6

As you travel throughout the universe, which of the following would always remain constant?

• Mass

• Weight

• Gravity

• Both Mass & Weight

Two students are pushing a cart, as shown in the picture.

The cart will move as if it were acted on by a single force with a magnitude of

• 50 N.

• 150 N.

• 200 N.

• 250 N.

Tags

NGSS.MS-PS2-2

Use the drawing to answer the following question.

All of the boxes shown above can slide easily. Which box will move farthest if each is struck with the same amount of force?

• The 1 kg box

• The 10 kg box

• The 20 kg box

• The 50 kg box

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Marisol is sitting in a bus that is passing by a traffic light. Which statement correctly describes Marisol's motion?

• Marisol is moving relative to both the traffic light and the bus driver.

• Marisol is not moving relative to either the traffic light or the bus driver.

• Marisol is moving relative tot he traffic light, but she is not moving relative to the bus driver.

• Marisol is moving relative to the bus driver, but she is not moving relative to the traffic light.

Which of the following electromagnets would have the greatest magnetic field?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-3