Forces

Which of the following is the gravitational force (i.e. weight) acting on the car?

• 1,010 NM

• 13,690 N

• 5.800 N

• 14,700 N

Tags

NGSS.MS-PS2-4

The weight of an object can be determined by multiplying the mass of the object by which of the following?

• the object's change in speed

• the object's acceleration due to gravity

• the object's size

• the object's velocity

Tags

NGSS.MS-PS2-4

What is the weight on the surface of Earth of an object of mass 2.00 kilograms?

• 9.8 N

• 19.6 N

• 4.9 N

• 2 N

Tags

NGSS.MS-PS2-4

Which vector best represents the frictional force acting on the block?

• B

• D

• C

• A

Tags

NGSS.HS-PS2-1

Which vector diagram best represents a cart slowing down as it travels to the right on a horizontal surface?

• D

• B

• A

• C

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

A 600 N astronaut travels to an asteroid where the gravitational force is one-hundredth that of Earth. What is the astronaut's weight on the asteroid?

• 6 N

• 60,000 N

• 6 kg

• 600 kg

Tags

NGSS.MS-PS2-4

In the diagram, a mass of exactly 4.000 kg is sitting on a flat board. A spring scale is attached to the mass. A reading of 17.64 N is needed to start to drag the mass over the board. (g = 9.810 m/s^2)

What is the value of the normal force on the mass in the above situation?

• 17.64 N

• 39.24 N

• 9.810 N

• 0.0 N

Tags

NGSS.HS-PS2-1

The acceleration due to gravity on the surface of Planet X is 19.6 m/s/s. If an object on the surface of this planet weighs 980.0 newtons, what is the mass of the object?

• 50.00 kg

• 490 N

• 908.0 N

• 100.0 kg

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

When a net force of 3 N is applied to a 0.75 kg cart, the cart's velocity changes from 0.2 m/s to 1.8 m/s in 0.4 s. Suppose that by adding masses, the total mass of the cart doubles. If the same force is applied for the same amount of time, what will the cart's change in velocity be, in m/s?

• 1.6 m/s

• 0.8 m/s

• 0.4 m/s

• 3.2

Tags

NGSS.MS-PS2-2

A 25 kilogram space probe fell freely with an acceleration of 2.0 m/s/s just before it landed on a distant planet. What is the weight of the space probe on that planet?

• 50.0 N

• 25 N

• 12.5 N

• 250 N

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2