Motion and Forces

An unbalanced force can make all of these things happen except...

• a moving object changes direction
• an object just sits there
• a moving object speeds up
• a moving object stops

Tags

NGSS.MS-PS2-2

If all four forces are balanced, the plane will

• plummet to the ground
• fly faster and faster
• fly slower and slower
• fly at a constant speed and direction

Tags

NGSS.MS-PS2-2

If two spheres of different masses, but the same size are dropped at the same time

• they will hit the floor at the same time
• the larger mass will hit first
• the smaller mass will hit first

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

The more massive an object is...

• the harder it will be to get moving.
• The harder it will be to stop.
• the harder it will be to speed up.
• all of the above.

Tags

NGSS.MS-PS2-2

To measure speed, you need to know...

• distance covered and speed
• distance covered and time it took
• acceleration and distance
• direction and time

What speed is the person with the red line going?

• 20 km per hour
• 10 km per hour
• 50 km per hour
• 30 km per hour

Tags

NGSS.MS-PS3-1

Force is measured in...

• lbs

• m/s2

• grams

• newtons

The unbalanced force that opposes motion is known as...

• friction

• force

• push or pull

• the tires on a car

An object in motion/rest stays in motion/ rest.... is what law?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

The force of an object depends on mass and acceleration.... is what law?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Tags

NGSS.MS-PS2-2