NGSS.MS-PS2-1

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

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

Tags

NGSS.MS-PS2-1

Any push or pull from one object to another.

• Force
• Friction
• Speed
• gravity

Tags

NGSS.MS-PS2-1

What is a Force?

• The distance
• Mass
• A push or pull
• Give me a  failing grade 

Tags

NGSS.MS-PS2-1

The picture is an example of Newton's...

• 1st Law

• 2nd Law

• 3rd Law

Tags

NGSS.MS-PS2-1

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

Which law explains why we need to wear seat belts?

• first law of motion

• second law of motion

• third law of motion

Tags

NGSS.MS-PS2-1

A player throws a ball. The action force is the player impact on the ball. The reaction force is...

• The force of the ball impact on the player
• The force of the grip of the ball
• The celebration the player is thinking of

Tags

NGSS.MS-PS2-1

Two students with different masses are sitting in roll-y chairs. The lighter one uses his feet to push the other

• The lighter student will move faster because he has less mass

• The heavier student will move more because he is being pushed

• They will move with the same speed

• The heavier student shouldn't move at all

Tags

NGSS.MS-PS2-1

A dog and a cat are about to fight, running towards each other, both at 12 m/s. What are their velocities relative to each other?

• 12 m/s

• 24 m/s

• 0 m/s

• 6 m/s

Tags

NGSS.MS-PS2-1

Why is the net force 0 in the image?

• Because the elephants are the same size
• Because they are both pulling the same amount of force in opposite directions
• Because they are elephants
• Because they are pulling away from each other.

Tags

NGSS.MS-PS2-1