7th PART 1 Unit 12 Review

Multiple Select

Which of the following is the unit of measure for Force?

Select all that apply

• N

• newton

• kg

• meter

Open Ended

What is a force?

Multiple Select

Forces cause objects to move by changing the objects...

Select all that apply

• mass

• acceleration

• speed

• direction

Open Ended

What are net forces?

Multiple Choice

What are free body diagrams used for?

• to represent the total mass of an object

• to represent the forces acting on an object

• to represent the total momentum of an object

• None of the answers are correct

Multiple Choice

For an object to move, the forces acting on the object must be

• balanced.

• acting in the same direction.

• acting in the opposite direction.

• unbalanced.

Multiple Choice

What happens if the forces are BALANCED?

• the object accelerates

• the object slows down

• there will be no change in the objects motion

• depends on where the forces are acting

Fill in the Blanks

Friction is a force that o

motion between two surfaces that are in contact.

Multiple Select

Which of the following are types of friction?

Select all that apply

• Fluid

• Rolling

• Sliding

• Static

• Solid

Match

Match the following

• opposes the motion of objects in a fluid such as air and water

• frictional force that acts on objects that are NOT moving

• a force that opposes motion of an object as it slides over a surface

• frictional force that acts on an rolling object

Fluid Friction

Static Friction

Sliding Friction

Rolling Friction

• Fluid Friction

• Static Friction

• Sliding Friction

• Rolling Friction

Multiple Choice

Gravity causes falling objects to

• accelerate downward.

• accelerate upward.

• stop in mid air.

• do nothing at all, it has no effect on falling objects.

Multiple Choice

Which of the following acts in the opposite direction of gravity?

• accelration

• air resistance

• mass

• speed

Match

Match the following

• An object in motion will stay in motion or an object at rest will remain at rest until acted upon by an unbalanced force

• Relates force and mass with the acceleration of an object

• for every action there is an equal and opposite reaction equal in strength and opposite in direction

Newton's First Law

Newton's Second Law

Newton's Third Law

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Multiple Choice

Which of Newton's three laws is also called the law of Inertia?

• 1st

• 2nd

• 3rd

Fill in the Blanks

Momentum is mass in

Multiple Select

Momentum depends on which of the following?

Select all that apply.

• acceleration

• mass

• velocity

• direction

Match

Match the following units of measure:

• momentum

• mass

• velocity

• time

• distance

kg ⋅ m/s

kg

m/s

s

m

• kg ⋅ m/s

• kg

• m/s

• s

• m