forces, experimenting with forces

If a force is unbalanced, it means (PICK 2!!)

• the objects do not have the same amount of force

• one object is moving slower than the other

• the objects have the same amount of force

• one force is strounger than the other and movement is created

Tags

NGSS.MS-PS2-2

On this diagram of a roller coaster which location has both kinetic and potential energy

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS3-4

Students wanted to see if the distance the marble rolled down a ramp changed the force it had. They allowed a marble to roll down the ramp from different starting points and strike a second marble. To determine if the force of the rolling marble changed, what should the students measure?

• The mass of marble #2 before and after being struck by marble #1.

• The distance marble #2 moves after being struck by marble #1.

• The time it takes marble #2 to move after being struck by marble #1.

• The direction marble #2 moves after being struck by marble #1.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

If a force is balanced, it means

• it is not moving very fast

• one object is moving slower than the other

• both objects have the same amount of force

• they are the same size

Which metal is NOT magnetic?

• iron

• cobalt

• nickel

• copper

Tags

NGSS.MS-PS2-3

An idea that can be tested by experiment or observation.

• Hypothesis

• Variable

• Reliability

• Question

Tags

NGSS.MS-PS1-2

True or False

Magnetic force can act at a distance.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What is the unit used to measure the strength of a force?

• gram

• Newton

• meter

• balance

Like magnets, atoms all have...

• north and south poles

• east and west poles

• north and east poles

• south and west poles

On this diagram of a roller coaster which location has the most potential energy?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-PS3-2