Physics Force Review

What is the metric unit of force?

• Kilogram

• Meter

• Pound

• Newton

What is the net force on this object?

• to the right with a strength of 11 Newtons.

• to the left with a strength of 7 Newtons.

• to the right with a strength of 25 Newtons.

• to the left with a strength of 6 Newtons.

Which of Newton's Laws of Motion is best illustrated by a rocket launch?

• 1st

• 2nd

• 3rd

• 4th

This is a property of matter that resists change in motion.

• time

• friction

• inertia

• all of the above

What law is best described by inertia?

• 1st
• 2nd
• 3rd

“An object will persist in its state of motion in the absence of a net force.”

• Newton's 1st

• Newton's 2nd

• Newton's 3rd

• None of the above

Who wins the tug of war with what net force?

• The person on the left with 20 N
• The person on the left with 80 N
• The people on the right with 20 N
• The people on the right with 100 N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What is the net force acting on the block?

• 4 lbs to the right
• 6 lbs to the right
• 14 lbs to the right
• 40 lbs to the right

Tags

NGSS.MS-PS2-2

Two vehicles were involved in an accident. Vehicle A has a mass of 2500 kg, and Vehicle B has a mass of 1,500 kg. Both vehicles were traveling at 30 km/hr at the time of collision.

What will most likely be the outcome of this collision?

• Vehicle A will have no change in speed and be pushed to the left because it has a smaller mass.

• Vehicle A will have a change in speed and be pushed to the left because it has a larger mass.

• Vehicle B will have no change in speed and be pushed to the left because Vehicle A has a larger mass.

• Vehicle B will have a change in speed and be pushed to the right because Vehicle A has a larger mass.

If a truck is moving on a road at 90 km/hr going due north and then changes direction and starts traveling north-east staying at 90 km/hr, what happens to its speed and velocity?

• The speed of the car changes, but the velocity stays the same.

• Both the speed and velocity of the car change.

• Neither the speed nor the velocity of the car changes.

• The velocity of the car changes due to a change in direction, but the speed will stay the same.