8th Unit 1 Force and Electricity

What does this distance-time graph represent?

• constant speed
• speeding up
• stationary
• slowing down

Tags

NGSS.MS-PS3-1

A reference point allows you to determine the ____ of an object

• state
• position
• size
• color

Tags

NGSS.5-PS2-1

A girl riding a bicycle passes a boy standing on a sidewalk. How does the boy appear to be moving relative to the girl after she passes him?

• the boy appears to get closer
• the boy appears to be standing still
• the boy appears to be moving away
• the boy appears to be moving more slowly

To find the netforce of two objects moving in opposite directions you would _____ their forces

• subtract
• add
• multiply
• divide

Tags

NGSS.MS-PS2-2

If a force acts constnatly on a stationary object, the object will

• remain stationary
• accelerate in the direction of the force
• move at a constant speed in the direction of the force
• acclerate in the opposite direction of the force

Tags

NGSS.MS-PS2-2

A ball rolling along a smooth sidewalk suddenly rolls onto a grassy area. What will happen to the ball's motion?

• It will roll faster because friction decreases
• It will roll slower because friction increases
• It will roll slowly because friction decreases
• It will not change

According to Newton's second law, the acceleration of an object depends on its

• friction and gravity
• net force and mass
• volume and gravitational force
• mass and balanced force

Tags

NGSS.MS-PS2-2

Two football linemen pushing against each other do not move

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

Tags

NGSS.MS-PS2-1

Also known as The Law of Inertia

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• Newton's 4th Law

When an object is slowing down, the acceleration is in the opposite direction as the velocity

• positive acceleration
• negative acceleration
• inertia
• average speed