A student inflates a balloon attached to a plastic straw. A string is threaded through the straw and tied to opposite ends of the room. When the air in the balloon is released, the balloon travels the length of the string. Which of Newton's laws explain this?

The law of force and acceleration

Which best explains the law of force and acceleration (Newton's 2nd Law of Motion)

A larger force will be required to accelerate a roller coaster with more people

Restraints keep passengers from falling out of a roller coaster

Riders must be certain heights so they have enough mass to ride

A roller coaster that goes up must also come down due to the force of gravity

If a bird hit your windshield on your car, the force of the car on the bird equals

the force of the bird on your car.

the force of the car on the brid

an elastic collision on the windshield

a noncontact force acting on the windshield

A player hits a ball with a bat. The action force is the impact of the bat against the ball. The reaction force is...

the force of the ball against the bat

The grip of the player's hands on the ball

What is the reaction force to a foot pushing down on the floor?

The floor pushing back against the foot

The foot going through the floor

What happens when two objects, such as a baseball and a bat, collide?

They will hit each other with the same force in opposite directions.

One remains still while the other one moves in the same direction.

They hit each other with unequal force in opposite directions

They hit each other with the same force in the same direction.

What does an object do when it accelerates?

It moves in the opposite direction

When two objects with unequal mass collide, what will they do?

accelerate in the same direction

A softball and a volleyball collide with equal speed, and then they accelerate at the same rate. What must be true about the masses of the objects?

The volleyball has more mass than the softball

The softball has more mass than the volleyball

The softball and the volleyball have equal mass

It is impossible to compare the mass of the softball and the volleyball

When a car accelerates forward, what is the equal and opposite reaction?

The car pushes backward on the ground.

The car pushes forward on the ground.

The car pushes downward on the ground.

The car pulls forward on the ground.

In the absence of an external force, a moving object will

Slow down and eventually come to a stop

When the rocket engines on a spacecraft are suddenly turned off while traveling in empty space, the starship will

Slowly slow down, and then stop

You are standing in a moving bus, facing forward, and you suddenly fall forward. You can infer from this that the bus's ______________

Speed remained the same, but it's turning to the right

Speed remained the same, but it's turning to the left

Which objects have a STRONG force of gravity?

Objects with GREATER mass, like elephants

Objects with LESS mass, like mice

Newton's Laws

Authored by Courtney Blake

Science

8th Grade

NGSS covered

Used 147+ times

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38 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which law explains how rockets are launched into space?

Newton's First Law of Motion

Newton's Second Law of Motion

Newton's Third Law of Motion

Newton's Fourth Law of Motion

Tags

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The push or pull that acts on an object

action

acceleration

force

inertia

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the balloon if the air is released ?

Balloon goes right

Balloon goes up

Balloon goes down

Balloon goes left

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is this an example of Newton's Third law

Only the ball is using the head

only the head is pulling the ball

They are both exerting an equal force on each other

Tags

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 5 pts

What is the NET FORCE of this diagram?

17 N, right

17 N, left

23 N, right

12 N, up

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Use the picture as reference. If the force of the girl pushing is 30N, and the force of the boy who is also pushing is 30N, what is the net force?

60N

900N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 5 pts

What is the net force?

20 N

0 N

400 N

40 N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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Newton's Laws

Which law explains how rockets are launched into space?

The push or pull that acts on an object

What happens to the balloon if the air is released ?

How is this an example of Newton's Third law

What is the NET FORCE of this diagram?

Use the picture as reference. If the force of the girl pushing is 30N, and the force of the boy who is also pushing is 30N, what is the net force?

What is the net force?

A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.

A hockey puck glides to the right across the ice at a constant speed.

Which freebody diagram best represents a bookbag resting on the classroom floor?

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