Know It All Friday - 8th Science - 8

This is an example of what kind of force?

• Balanced Force
• Pushing Force
• Gravity Force
• Unbalanced Force

Tags

NGSS.3-PS2-1

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Which model has greater gravitational attraction (if any)

• Model A
• Model B
• Both Model A and Model B (same gravity)

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A person would weigh less on on the Moon than on the Earth because . . .

• Moon has more mass, and therefore more gravity
• Moon has less mass, and therefore more gravity
• Moon has more mass, and therefore less gravity
• Moon has less mass and therefore less gravity

Tags

NGSS.MS-PS2-4

Billy pushes his little brother on a sled through the snow. He then tries to push his father on the the same sled. He noticed that it was much harder to push his father. Which law is this an example of?

• 1st Law

• 2nd Law

• 3rd Law

Tags

NGSS.MS-PS2-2

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

Tags

NGSS.MS-PS2-3

What is most likely to happen when the switch is closed?

• A magnetic field should be produced
• The nail will rust
• The battery will explode
• The wire will catch on fire

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

How often a wave occurs is the wave's __________________

• crest
• frequency
• wavelength
• resting point

Mechanical waves are created when a source of energy causes a medium to  _________________.

• vibrate
• expand
• move
• compress

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In longitudinal waves, the parts where the coils are spread apart are called what?

• rarefactions
• compressions
• mechanicals
• longitudes