The video tutorial introduces the concept of net force, building on previous lessons about forces. It explains how forces can cause motion, change direction, or alter an object's shape. The tutorial distinguishes between balanced and unbalanced forces, highlighting that balanced forces result in no net force, while unbalanced forces cause movement. It also covers contact and non-contact forces, providing examples like applied, spring, drag, friction, normal, magnetic, and gravitational forces. The video teaches how to calculate net force by adding or subtracting forces based on their direction and provides practice problems to reinforce learning.

What is the net force of balanced forces?

• Greater than zero

• Less than zero

• Depends on the direction

• Zero

Which of the following is an example of a contact force?

• Gravitational force

• Magnetic force

• Electrical force

• Applied force

What type of force is experienced when swimming in water?

• Normal force

• Magnetic force

• Drag force

• Friction force

Which force is responsible for the tides on Earth?

• Magnetic force

• Electrical force

• Gravitational force

• Normal force

Tags

NGSS.MS-ESS1-1

NGSS.MS-PS2-4

NGSS.MS-PS2-5

How do you calculate net force when forces are acting in the same direction?

• Multiply the forces

• Subtract the forces

• Add the forces

• Divide the forces

Tags

NGSS.MS-PS2-2

If two forces are acting in opposite directions, what should you do to find the net force?

• Subtract the forces

• Divide the forces

• Add the forces

• Multiply the forces

Tags

NGSS.MS-PS2-2

In a tug of war, if both teams pull with equal force, what is the net force?

• Equal to the product of the forces

• Equal to the difference of the forces

• Equal to the sum of the forces

• Zero

Tags

NGSS.MS-PS2-2

What is the net force if 500 N is pulling to the left and 300 N is pulling to the right?

• 800 N to the right

• 800 N to the left

• 200 N to the right

• 200 N to the left

Tags

NGSS.MS-PS2-2

If two forces of 400 N each are acting in opposite directions, what is the net force?

• Zero

• 400 N

• 800 N

• 200 N

Tags

NGSS.MS-PS2-2

When forces are balanced, what is the resulting motion of the object?

• It changes direction

• It remains in constant motion or at rest

• It decelerates

• It accelerates