A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.

The Law of Conservation of Momentum

A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.

Law of Conservation of Momentum

Which activity would BEST demonstrate the Law of Action/Reaction?

A soccer ball sitting on the ground.

Which activity would BEST demonstrate the Law of Force and Acceleration?

A soccer ball sits on the ground.

During a demonstration of Newton’s laws of motion, a student used the setup shown in Figure 1. The student flicked the index card with a fingertip, and the coin fell straight down into a plastic cup as shown in Figure 2. Which of these best explains why the coin fell straight down into the cup instead of remaining on the index card?

The coin was at rest until the card was removed, so it tended to remain in the same location. Once the card was gone, the unbalanced force of gravity caused the coin to fall.

Moving the card applied an action force on the coin. Since the card was gone, gravity applied a reaction force on the coin.

The card had less mass than the coin, so a smaller force of gravity acted on the card. The larger force of gravity on the coin made it fall.

The acceleration of the coin falling into the cup was equal and opposite to the acceleration of the card.

Newton’s first law of motion, applied to a book sitting on a table, would explain that the book will not move until which of the following conditions is met?

Unbalanced forces act on the book

Gravity on the book can be reduced to zero

Balanced forces act on the book

Friction being exerted on the book

A rising hot air balloon is acted on by a force pulling it upward and by the force of gravity pulling it downward. Based on Newton’s Law of Inertia, what will happen to the balloon when the force of gravity equals the upward force?

It will move toward the ground.

Which of the following describes an application of Newton’s Law of Inertia?

A car stops suddenly, but the passengers in the car are thrust forward into the seat belts.

The force pushing downward on a box is equal to the force pushing upward on the box

Earth’s tectonic plates collide with equal force and equal acceleration.

The force of gases pushing downward from a rocket launch the rocket upward against gravity

A truck that is travelling at a constant speed is carrying some boxes. If the truck comes to a sudden stop, what will most likely happen to the boxes?

They will slide toward the front of the truck.

They will stay in the middle of the truck.

They will slide toward the back of the truck.

They will fall off the side of the truck.

A student throws a ball against a wall. Which statement best explains what is happening in the picture.

The force from the wall on the ball is equal and opposite to the force from the ball on the wall.

The energy of the ball is destroyed as it strikes the wall.

The energy of the ball becomes negative as it hits the wall.

The force exerted by the ball on the wall is greater than the force exerted by the wall on the ball.

A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?

For every action there is an equal and opposite reaction.

Every mass exerts a force on every other mass.

An object at rest tends to stay at rest.

Friction opposes the motion of an object.

Newton's Laws

Quiz

•

Physics

•

KG - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS2-2, MS-PS2-1, MS-PS2-4

+9

Standards-aligned

Heather Reeves

Used 124+ times

FREE Resource

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.

Newton's 1st Law

Newton's 2nd Law

Newton's 3rd Law

None of them

Tags

NGSS.MS-PS2-2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

Newton's 1st Law

Newton's 2nd Law

Newton's 3rd Law

None of them

Tags

NGSS.MS-PS2-2

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Newton's Laws

100 questions

A person’s body is thrown outward as a car rounds a curve on a highway.

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.

A picture is hanging on a wall and does not move.

A person not wearing a seatbelt flies through a car window when someone slams on the breaks because the person’s body wants to remain in continuous motion even when the car stops.

Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.

Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

This law is often called "the law of inertia."

A soccer ball accelerates more than a bowling ball when thrown with the same force.

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