Force diagrams
Word problems
Momentum & Inertia
Use the Force!
Elevators
100
A push or a pull
What is a force
100

The acceleration of a 20 kg object experiencing a force of 200 N

What is 10 m/s2

100
Two factors that affect momentum
What is Mass and velocity
100
A force that opposes motion( always goes against motion)
What is Friction
100

If an elevator is accelerating upward, does this acceleration add or subtract from earth's gravitational acceleration?

What is added to

200
What is a force that pulls all objects to ground?
What is Gravity
200
Team A pulls with a force of 100 N and Team B pulls with a force of 200 N. Which team will win the tug of war?
What is Team B
200
If the speed of a car increases the momentum of the car_________
What is increases
200
forces that are equal in size but opposite in direction.
What is a balanced force
200

When moving at constant velocity upward, what is the weight of a 100 kg person?

What is 980 N?

300

The typical forces on a object moving with constant velocity

What is force of gravity and normal force.

300

The force on a 1500 kg car moving at 2 m/s2

What is 3000 N?

300

Law that states momentum is the same before and after a collision between two objects.

What is law of conservation of momentum

300

What about forces cause an object to accelerate

What is Unbalanced forces

300

Describe the series of three sensations on you as you ride an elevator from the ground to the 10th floor.

What is an increase in force against your feet as the elevator accelerates upward, normal force on your feet as it moves with constant velocity, and finally a decrease in force on your feet as the elevator slows to a stop on the way up.

400
unequal forces that don't cancel out;
What is Unbalanced forces
400

The normal force on a 100 kg person.

What is 980 N

400

A 100 kg car is moving 2m/s. What is the momentum?

What is 200kg.m/s

400

Which is different for a falling steel ball compared to a wooden ball? Acceleration or force of gravity?

What is the force of gravity?

400

The total acceleration on an elevator as it begins to descend at a rate of 2 m/s2

What is 7.8 m/s2

500

The forces on an object when being pushed, but moving with constant velocity.

What are gravitational, normal, physical, and frictional forces?

500

If a horse pulls a cart with 1200 N, how much force does cart pull back on the horse. How does it accelerate?

What is 1200N. It accelerates because the unbalanced forces are not between the cart and horse, but the force of the ground pushing back on the horse's hooves is greater than the cart pulling back on the horse.

500

How fast is a figure skating pair moving after the 50 kg skater moving at 1 m/s jumps into the arms of the 100 kg skater moving at 2 m/s

What is 1 m/s?

500

The forces acting on a marble that rolls off a table and is falling through the air.

What is the force of gravity?

500

An elevator with a mass of 1000 kg is slowing to a stop as it descends. The acceleration is 2 m/s2. What is the normal force on the elevator?

What is 11,800 N

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