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Newton's Second Law
Newton's Third Law
Mass, Weight, Friction
Momentum and Collisions
Vocabulary/Other
100
This law states that the mass of an object is inversely proportional to the acceleration that is undergoes.
What is Newton's Second Law of Motion?
100
This law states that for every force that object A applies on B, object B pushes the same amount of force back, but in the opposite direct, of object A.
What is Newton's Third Law of Motion?
100
The reason a chair slows down after you push it accross the floor is due to this type of force.
What is frictional force?
100

Explain momentum.

Mass in motion

100

This term describes the measurement of the force gravity on an object's mass.

What is weight?

200

Newton's second law states _________ are needed in order for an object to undergo an acceleration 

What is an unbalanced force?

200

Newton's 3rd Law states that forces come in ________.

What is pairs?

200

A bag of sports equipment has a mass of 30.0 kilograms. What is its weight and normal force on Earth?

300 N and 300 N

200

In what type of collision do the objects have the same shape as before the collision, and NO energy is lost?

Elastic 

200

Compared to its weight on Earth (g=9.8), the weight of a 10-kg object on the moon (g=1.6) is ___________.

Less

300

True or False: If an object is pushed with more force, it will move faster, or have a greater acceleration.

What is true?

300

What is an interaction?

Mutal action between two objects.

Action/reaction forces

300

This is the weight (NUMBER AND UNIT) of a person whose mass is 55 kg and is standing on planet Earth.

What is 550N ?

300

According to the law of conservation of momentum, in the absence of an external force, the momentum of a system remains ________.

Unchanged

300
This is the constant (number AND UNIT) we always use for acceleration when we are calculating our scientific weight on planet Earth.
What is 9.8 (m/s^2)?
400
These are the standard units used for describing the values of Force, Mass, and Acceleration when using Newton's Second Law of Motion.
What are Newtons, Kg, and m/s^2?
400

Identify the action and reaction force.

Foot pushes down on the ground with 50 N

Ground pushes up on foot with 50 N

400
What is the mass of a person who has a force of 500 N pulling on them on a planet whose gravity is 11.5 m/s^2?
What is 43 kg?
400

What is the momentum of a 9 kg bowling ball rolling at 3 m/s?

27 kg. m/s

400
This is the type of force that opposes gravity when the object is at rest on a surface.
What is the Normal Force?
500

This is the acceleration of an object that has a mass of 56 kg and is pushed by an unbalanced force measuring in at 140 N. (HINT: You MUST have the correct units in order to get the points!!!)

What is 2.5 m/s^2?

500

Describe an everyday situation in which we see Newton's Third Law of Motion occuring.

What is (answers vary-must demonstrate forces acting in pairs and equal and opposite to one another).

500

A soccer ball after Alan kicks it has a coefficient of kinetic friction of μ = 0.35.  If the ball feels a normal force (FN) of 4.5 N, what is the frictional force that acts on the ball?

1.6 N

500

A 3,000 kg car is traveling at 12 m/s when it strikes another 2,000 kg car that is at rest. If the cars lock together, what is the final velocity of the two cars?

7.2 m/s

500

List the 4 types of friction.

Kinetic, Static, Rolling, and Fluid