States that if no external forces acts on a group objects, their total momentum doesn't change.

Law of conservation of momentum

A friction-like force that opposes the motion of the objects that move through the air.

Law of conservation of momentum

Forces combining to produce a net force that isn’t zero, which causes objects to move.

Law of conservation of momentum

Four boxes of increasing size and mass must be pushed up a ramp. To push the boxes with the same acceleration, what must occur?

Push the box with the greatest mass with more force

Push the boxes with the same force up the ramp

Push the box with the greatest mass with less force

Push the box with the lowest mass with more force

You have two piece of notebook paper, one flat, and one crumpled into a ball. Which of the following best explains why the crumpled paper would hit the ground first when dropped from the same distance at the same time?

less surface area (less air resistance)

greater mass (less air resistance)

larger shape (less air resistance)

You apply a force of 2 newtons to your chromebook, this causes your chromebook to move.....

In the same direction of the net force

In the opposite direction of the net force

Which of the following best explains why a person's weight would not be the same on the moon as it is on earth?

there is less gravity on the moon

there is no gravity on the moon

there is greater gravity on the moon

Which statement best explains why a baseball thrown straight up in the air will land back in your hand while traveling in a car at 30 m/s?

All objects within the car have the same velocity

All objects within the car have different velocities

Select the most appropriate answer that describes the following: what happens when an astronaut drops a feather & a hammer at the same moment on the moon & why this occurs.

they hit the ground at the same time because there is no air resistance on the moon

they hit the ground at the same time, this happens because there's no gravity on the moon

this happens because there's no gravity on the moon

the hammer hits the ground first because it has more mass

Which would be harder to stop & why--a bowling ball or a volleyball rolling at the same speed?

the bowling ball because it has greater mass & therefore greater inertia

the volleyball because it is able to move faster due to being a lighter mass & less inertia

they would both be equally as hard to stop because they're going the same speed

Using what you know about the second law of motion, explain why a softball (1.1 kg) and a baseball (0.145 kg) thrown with the same amount of force will move at different velocities.

The softball moves slower because it has a greater mass, this decreases acceleration

The softball moves faster because it has greater mass, this increases acceleration

Select the option which best explains how a parachute is able to help a person land safely on the ground after jumping out of a perfectly good airplane.

air resistance increases and acts in the opposite direction, allowing it to lower the terminal velocity of the diver

air resistance decreases and acts in the same direction, allowing it to increase the diver's terminal velocity

air resistance decreases and acts in the opposite direction, allowing it to increase the diver's terminal velocity

Unit 8- Laws of Motion & Forces

Authored by Ashley Cox

Physics

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

__ states that when one object exerts a force on a second object, the second object exerts a force on the first that is equal in strength & opposite in direction.

1st law of motion

2nd law of motion

3rd law of motion

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The tendency of an object to resist any change in its motion.

Inertia

Centripetal acceleration

Centripetal force

Acceleration

Air resistance

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Acceleration toward the center of a curved or circular path.

Centripetal acceleration

Inertia

Centripetal force

Acceleration

Air resistance

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A force exerted toward the center of a curved path.

Centripetal force

Inertia

Centripetal acceleration

Acceleration

Air resistance

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

States that an object moves at a constant velocity unless an unbalanced force acts on it.

1st law of motion

2nd law of motion

3rd law of motion

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

States that an object's acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by its mass.

1st law of motion

2nd law of motion

3rd law of motion

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A property of a moving object resulting from its mass and velocity is _______

Momentum

Inertia

Centripetal acceleration

Centripetal force

Acceleration

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Unit 8- Laws of Motion & Forces

__ states that when one object exerts a force on a second object, the second object exerts a force on the first that is equal in strength & opposite in direction.

The tendency of an object to resist any change in its motion.

Acceleration toward the center of a curved or circular path.

A force exerted toward the center of a curved path.

States that an object moves at a constant velocity unless an unbalanced force acts on it.

States that an object's acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by its mass.

A property of a moving object resulting from its mass and velocity is _______

States that if no external forces acts on a group objects, their total momentum doesn't change.

A friction-like force that opposes the motion of the objects that move through the air.

__ is an attractive force between any two objects that depends on the masses of the objects & the distance between them

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