Cycle 1 Exam Review (Grade Recovery)

What does this FBD indicate?

• Balanced forces

• Unbalanced forces in the same direction

• Unbalanced forces in opposite directions

• Unbalanced forces perpendicular to each other

What is the net force, and what direction is that net force in?

• 3 N left

• 3 N right

• 19 N left

• 19 N right

What do balanced forces indicate about a moving object's velocity?

• An object with balanced forces can't be moving

• An object with balanced forces is accelerating

• An object with balanced forces is slowing down

• A moving object with balanced forces is moving with constant velocity

Calculate the acceleration of this object

• 2

• 5

• 25

• 1

30 kg object is accelerating at 10 m/s^2. What is the magnitude of the force?

• 3 N

• 20 N

• 300 N

• 40 N

A 25 N force acts on a 5 kg object at rest. What will the acceleration of the object be? Assume no friction.

• 125 m/s²

• 5 m/s²

• 30 m/s²

• 20 m/s²

An object accelerates to the left at a rate of 2 m/s². What is the value of Force X? (remember left is negative)

• 10 N

• -10 N

• 50 N

• -50 N

A ball hits the back of a basketball hoop. Which picture correctly shows the forces involved between the ball and the backboard? (think about Newton's 3rd Law)

• 
• 
• 
• 

"An object in motion stays in motion unless acted on by a force" describes which of Newton's 3 Laws?

• 1st

• 2nd

• 3rd

• None

Where do we measure distance between a planet and moon from when considering gravitational force?

• The outside edge of each

• The inside edge of each

• The center of mass of each

• It doesn't matter