Balanced and Unbalanced Forces Notes

Multiple Choice

Which of the following best describes a situation where balanced forces are acting on an object?

• A car accelerating on a highway

• A book resting on a table

• A ball rolling down a hill

• A person jumping off a chair

Multiple Choice

What happens when unbalanced forces act on an object?

• A change in motion occurs

• The object remains at rest

• The object disappears

• The forces cancel each other out

Multiple Choice

What does 'net force' refer to?

• The total of all forces acting on an object

• The force of gravity only

• The force of friction only

• The force applied by a single object

Multiple Select

Which of the following statements are true about net force when forces act in the same direction?

• You add the forces together

• The net force is zero

• The object will not move

• The net force increases

Multiple Select

When forces act in opposite directions, which of the following are correct?

• You subtract the forces

• The net force is always zero

• The direction of the net force is the direction of the larger force

• The forces are added together

Fill in the Blanks

When two forces of 10 N and 5 N act in the same direction on an object, the net force is

N.

Open Ended

Explain how to determine the net force and its direction when multiple forces are acting on an object in different directions, using the example with 5 N, 2 N, and 10 N shown in the image.

Fill in the Blanks

When the net force acting on an object is zero, the object will experience

motion.

Multiple Choice

What are the characteristics of balanced forces?

• All forces act in the same direction and are unequal in magnitude.

• All forces acting on the object are opposite and equal in magnitude.

• The object always accelerates when balanced forces act on it.

• Balanced forces only occur when an object is moving at a changing speed.