Forces and Motion Unit Preassessment

Which of these photos shows a balanced force?

• The top Mystery Machine
• The middle Mystery Machine
• The bottom Mystery Machine

Tags

NGSS.MS-PS2-2

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

If all objects really do accelerate downward the same (due to gravity pulling down) why does a leaf fall slower than a wood block?

• Friction
• Independent variable
• Air resistance
• Speed

A force that slows or stops motion when objects rub together.

• friction
• push
• pull
• gravity

The rougher the surface, the faster an object will travel over the surface.

• True
• False

Which of the following is NOT a correct unit for speed?

• miles per hour
• km/min
• seconds per hour
• cm/s

If you travel 10 miles in 5 minutes, what is your speed?

• 10 mi/min
• 15 mi/min
• 50 mi/min
• 2 mi/min

Tags

NGSS.MS-PS3-1

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

• Type of plant
• Water, apple juice, milk
• Plant growth
• Color of the plant's leaves

Tags

NGSS.MS-LS1-5

Which of these shows an image that accelerated the MOST?

• Graph A
• Graph B

Tags

NGSS.HS-PS2-1

The force of gravity is responsible for which of these things?

• Keeping our planet in orbit around the sun.
• Keeping our moon in orbit around our planet.
• Letting things fall to the ground.
• All of the above.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-PS2-4