Vocabulary
Net Forces
Mixed Practice
Weight
Laws
100

A push or a pull

What is a force?

100

You push a block horizontally along a frictionless surface with a force of 100N. What is the net force on the block?

What is 100N?

100
A 45 kg child sits on a 3.2 kg tire swing. What is the overall tension on the ropes that hangs from the tree branch?
What is 470 N?
100

How much would a 75kg person weigh on Earth?

What is 735N?

100

The equation for Newton's second law of motion.

What is Fnet=ma?

200

The vector sum of all of the forces on an object

What is net force?

200

You and a friend each push a block along a frictionless surface with a force of 100N. What is the net force acting on the block?

What is 200N?

200
If a motorcycle starts from rest and maintains a constant acceleration of 3 m/s^2, how far did it travel when it hit 12 m/s?
What is 24 m?
200

Weight depends on these two quantities.

What is mass and gravitational acceleration?

200

The outside force that stops a rolling ball in a field.

What is friction?

300

The tendency of an object to resist changes in velocity

What is inertia?

300

You and your friend are arguing over a bag of potato chips. You pull with a force of 150N and your friend pulls in the opposite direction with a force of 75N. What is the net force acting on the bag (magnitude and direction)?

What is 75 N towards you.

300
How does an object's acceleration change if the net force exerted on the object is doubled?
What is the acceleration is doubled?
300

If an object is flat on a table, then its weight is equal to this.

What is normal force?

300

The term for describing opposing forces that keep an object at rest.

What are balanced forces?

400

The reason a bookbag on a desk stays on top instead of falling down.

What is the normal force?

400

A 5.0 kg flower pot falls from a railing. Calculate the net force on the flower pot. Neglect air resistance.

What is 49 N?

400

A 4.0 x 10^3 kg helicopter accelerates upward at 3.5 m/s^2. What lift force must be exerted by the air on the propellers?

What is 53,000 N?

400
The gravitational pull on Pluto is 0.06 times the gravitational pull on Earth. How much would a 70 kg person weigh on Pluto?
What is 41 N?
400

Newton's 3rd Law

What is "every action has an equal and opposite reaction?"

500

The coefficient of friction is represented by this.

What is mu?

500

The net force of an object when the object is moving at a constant velocity.

What is 0?

500
A 45 kg child sits on a 3.2 kg tire swing attached to a sagging tree branch with their feet on the ground. If the tension in the rope is 220N, what is the value of the force exerted by the ground on the child's feet?
What is 252 N?
500

The gravitational pull on Jupiter is 2.36 times the gravitational pull on Earth. If a person weighs 588N on Earth, how much would they weigh on Jupiter?

What is 1388 N?

500

If net force is zero, then the object can be doing this or this.

What is stationary or moving?

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