Physical Science Forces

What are balanced forces?

• Forces in the same direction
• Forces of the same size
• forces of the same size in opposite directions

Tags

NGSS.3-PS2-1

for every action there is...

• An equal and opposite reaction
• An equal and different reaction
• a different force
• two more forces

Tags

NGSS.MS-PS2-1

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?

• 50N to the left.
• 350N to the left.
• 350N to the right.
• 50N to the right.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The force that opposes the motion of two surfaces sliding past each other is called ___________.

• acceleration
• inertia
• friction
• unbalanced

What is it called when the force of gravity is acting on an object?

• Weight
• Sliding Friction
• Momentum
• Projectile Motion

Tags

NGSS.MS-PS2-4

This is a rocket.The rocket pushes the fuel down.What is the other force in this interaction pair?

• The fuel pulls the rocket up.
• The fuel pushes the rocket up.
• The rocket pulls the earth up.
• The earth pulls the rocket down.

Tags

NGSS.MS-PS2-1

On the Picture the balloon pushes the air right and the balloon goes left. Which of Newton's Laws is this?

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

Tags

NGSS.MS-PS2-1

In a normal environment, why does a bowling ball and feather hit the ground at different times when dropped from the same height?

• They don't; they hit the ground at the same time.
• One is more dense than the other.
• One is heavier than the other.
• Air resistance 

Inertia is the tendency of an object to resist a change in its ___________. 

• temperature
• shape
• size
• motion

Tags

NGSS.MS-PS2-2

A person not wearing a seat belt 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.

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