Forces and Motion Unit Quiz

What is the net force?

• 400 N Up

• 800 N Up

• - 400 N Down

• 800 N Down

You are pushing a box to the right with 5N, while your friend is pulling the box to the left with 15N.

What is the net force and which direction will the box move?

• 20N to the left

• 10N to the right

• 10N to the left

• 20N to the right

the tendency of an object to resist a change in its motion

• acceleration
• inertia
• mass
• frame of reference

What is the unit of measurement for force?

• m/s

• m/s²

• N

• kg

In what has become an all too regular occurrence, another elephant has been seen chasing a mouse. The mouse can run much faster than the elephant and the elephant is much more massive than the mouse. Why can the mouse change directions quicker than the elephant?

• Because the mouse has a greater speed.

• Because the mouse has less mass.

• Because the elephant has a smaller speed.

• Because the elephant has less mass.

What would happen if a ball was kicked in space?

• It continues in the same direction, slowing down as it goes.

• It continues in the same direction, speeding up as it goes.

• It continues to move in the same direction unless it hits something or is affected by gravity or another force.

Which two factors determine the strength of the force of gravity between two objects?

• time and temperature

• shape and mass

• mass and distance apart

• distance and time

In a car accident, a seat belt helps prevent injuries by applying a force

• less than the force of the moving passenger

• greater than the force of the moving car

• in the same direction as the car’s motion

• in the opposite direction of the passenger’s motion

An object that has a mass of 4 kg is accelerating down a ramp at 20 m/s2. what is the force produced by the box?

• 0 N

• 5 N

• 24 N

• 80 N

A net force of 30 N causes a mass to accelerate at a rate of 5 m/s2. Determine the mass.

• 6 N

• 6 kg

• 150 N

• 150 kg