Forces-calculations and NL

What is the name of the units that we measure force in?

• Einsteins

• Newtons

• Kilograms

• Metres

When two objects rub together, what force do they produce

• Gravity
• Air resistance
• Friction
• Water resistance

An _______ force must act on an object for it to CHANGE it's motion

• balanced
• unbalanced
• gravitational
• electrical

Tags

NGSS.MS-PS2-2

What law is best described

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

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

What law is best described

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

• The Law of Inertia (1st law)

• The Law of Acceleration (2nd law)

• The Law of Conservation of Momentum

• Action Reaction Law (3rd law)

Tags

NGSS.MS-PS2-1

What law is best described

• 1st

• 2nd

• 3rd

• law of motion

Tags

NGSS.MS-PS2-1

With unbalanced forces, the object will move in the direction that the _______ force is being applied.

• larger 
• smaller 
• equal 
• less

Tags

NGSS.MS-PS2-2

You hit a wall with a stick.  The equal but opposite reaction is _____

• the wall pushes against you
• the stick pushes against you
• you push against the stick
• the wall pushes against the stick

Tags

NGSS.MS-PS2-1

Which one is balanced?

• top
• bottom
• both
• neither

It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes

• Newton's first law, the law of inertia
• Newton's second law, the law of acceleration
• Newton's third law, the law of action reaction 
• The law of universal gravitation

Tags

NGSS.HS-PS2-1