Solving For Net Force

Solving For Net Force

​Remember to take notes as you go through the lesson and show teacher.

Play until you get a 100%.

Multiple Choice

__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 

• velocity
• gravity
• net force
• distance

Multiple Choice

If all forces acting on a object are equal, the forces are...

• balanced

• unbalanced

Multiple Choice

If the net force of an object is greater than zero, will the object move?

• yes

• no

Multiple Choice

Can an object still be moving if all forces are balanced?

• yes, if velocity is constant

• no, is in a state of equilibrium

Multiple Choice

Is force a vector or a scalar?

• vector

• scalar

Multiple Choice

How do you solve for net force?

• mass x acceleration

• mass / acceleration

• acceleration / mass

Multiple Choice

In F=ma, F represents the ...

• net force

• certain forces

• the applied force

Multiple Choice

Do you add or subtract forces that are going in the same direction?

• add

• subtract

Multiple Choice

Do you add or subtract forces that are going in the opposite direction?

• add

• subtract

Multiple Choice

Does direction matter when determining the net force on an object?

• yes

• no

Multiple Choice

What does it mean if the net force of the object is negative?

• it could be moving down or to the left

• it could be moving up or to the right

Multiple Choice

What does it mean if the net force of the object is positive?

• it could be moving down or to the left

• it could be moving up or to the right

Multiple Choice

What is the NET FORCE of this diagram?

• 17 N, right

• 17 N, left

• 23 N, right

• 12 N, up

Multiple Choice

What is the magnitude (size) and direction of the net force?

• 10 N to the Right

• 10 N to the Left

• 0 N

• 8 N to the Left

Multiple Choice

What should be the first step when solving the problem from the previous slide?

• draw free body diagram for the object

• determine the net force

• solve for acceleation

• solve for mass

Multiple Choice

What was the second step for this type of problem?

• solve for mass

• solve for friction

• solve for net force

• determine the value of acceleration

Multiple Choice

Why is the force of friction negative?

• because it is going opposite of the applied force

• because it is the way things are

• because it is going in the same direction as the applied force

Multiple Choice

How do you solve for force of friction in this type of problem?

• divide the net force by acceleration

• subtract the applied force from the net force

• add the applied force to the net force