Net Force Lesson

Presentation

•

Science

•

8th Grade

•

Medium

•

NGSS

MS-PS2-2, MS-PS2-1, MS-PS2-4

Standards-aligned

Darlene Whitman

Used 14+ times

FREE Resource

9 Slides • 25 Questions

Multiple Choice

Calculate the net force of the object in the image shown.

20N

35N

25N

Multiple Choice

What is the net force?

30 N Left

25 N Right

5 N Left

55 N Left

Multiple Choice

The definition of Force is:

The pull of gravity.

A push or pull on an object

Something that moves an object

the superpower that Darth Vader uses to subdue his enemies.

Multiple Choice

Mass is

The amount of matter an object has

How much something weighs

Lower on the Moon

A push or pull on an object

Multiple Choice

What is the net force?

25 N

10 N down

5 N up

10 N up

Multiple Choice

Omar and Katey reach for the same toy car at the same time. Omar pulls the toy away from Katey with a force of 10 N. Katey is pulling back with a force of 6 N. What is the net force?

4 N

6 N

10 N

16 N

Multiple Choice

In the context of balanced forces, which statement is true?

They always cause an object to move

They result in a net force of zero on the object

They are only observed in outer space

They increase the mass of the object

Multiple Choice

What is the net force acting on the car moving at a steady speed?

3000 N

0 N

6000 N

1500 N

Multiple Choice

Calculate the Net Force.

40N, Left

40N, Right

0N, Balanced

75N, Right

Multiple Choice

What is the net force?

20 N Right

0 N

40 N Left

40 N Right

Categorize

Options (8)

No change in motion.

Forces are equal and opposite.

Change in motion.

Unequal forces.

Net force = 0N

Net force does not equal 0N

Constant motion.

Speeding up, Slowing down, turning.

Sort the following descriptions into the appropriate category.

Balanced Forces

Unbalanced Forces

Multiple Choice

Is it BALANCED?

Yes

Multiple Choice

What is the net force?

15 N

5 N to the left

5 N to the right

15 N left

Multiple Choice

What is the net force?

65 N left

65 N right

35 N left

35 N right

Multiple Choice

The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?

Object W

Object X

Object Y

Object Z

Multiple Choice

What is the net force?

5.5 N left

5.5 N right

2.5 N left

2.5 N right

Multiple Choice

If the car in the diagram rolls faster and faster as it moves down the ramp, you can be sure that

there is no friction acting on the object.

the forces acting on it are unbalanced.

the net force on the car is 0 N.

only gravity is acting on the car.

Multiple Choice

What is the net force?

3 N left

3 N right

7 N left

7 N right

Multiple Choice

The list includes six situations.

Which objects in the list experience an unbalanced force?

The book, the ball, and the car

The ball, the car, and the bird

The can, the swing, and the bird

The book, the ball, the can, and the swing

Multiple Choice

The unusual strength of a glue makes it able to hold a heavy object, or load, as shown in the diagram below. If the load exerts a strong downward force, the glue —

destroys the force

exerts a stronger downward force

causes the load to accelerate upward

exerts an upward force that is equal to the downward force

Multiple Choice

Calculate the Net Force.

60N, Left

40N, Right

60N, Right

Multiple Choice

What is the net force?

17 N Right

3 N Right

3 N Left

17 N Left

Dropdown

The forces acting on the cart are

, causing the cart to move to the

Dropdown

The forces acting on the cart are

, causing the cart to move to the

Multiple Choice

An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.

Unbalanced, because the plane is moving forward, not backwards

Unbalanced, because the speed is constant and there is a change in direction

Balanced, because the plane is not falling to a lower altitude

Unbalanced, because the plane is in motion

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