Category 2 Day 1 Warm up

A student graphs the motion of a toy car moving in a straight line over

a 10-second time period. Which statement BEST describes the motion of the car?

• The car moved at a speed of 5 meters per second during the first

  5 seconds and then moved at a slower speed during the next

  5 seconds.

• The car moved at a speed of 5 meters per second during the first

  5 seconds and then moved at a faster speed during the next

  5 seconds.

• The car moved at a speed of 1 meter per second during the first

  5 seconds and then moved at a slower speed during the next

  5 seconds.

• The car moved at a speed of 1 meter per second during the first

  5 seconds and then moved at a faster speed during the next

  5 seconds.

Tags

NGSS.MS-PS3-1

 A tennis ball is dropped down a stairwell.

Which statement BEST describes the energy of the tennis ball?

• The tennis ball’s kinetic energy decreases as it falls to the ground.

• The tennis ball has the most potential energy just before it

  is dropped

• The tennis ball has the most kinetic energy as soon as it

  is dropped.

• The tennis ball’s potential energy increases as it falls to

  the ground.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A car drives down a long road.

What was the car’s average speed in kilometers per minute for the

entire 14-minute trip?

•  12 km/min

• 0.86 km/min

• 0.23 km/min

• 1.17 km/min

Tags

NGSS.MS-PS3-1

A student turns on a battery-operated fan. The batteries are located

in the base of the fan. After five minutes, the student notices that the

base of the fan is warm.

Which statement BEST describes the conversion of energy taking

place in the fan?

• Chemical energy is being converted into mechanical energy and

  light energy.

• Chemical energy is being converted into mechanical energy and

  thermal energy.

•  Electrical energy is being converted into chemical energy and

  light energy.

• Electrical energy is being converted into thermal energy and

  sound energy.

Tags

NGSS.MS-PS3-5

Which graph represents a baseball player accelerating away from a base located at the origin?

• 
• 
• 
• 

The image shows a roller coaster cart moving along a track.

Which statement BEST describes the kinetic and potential energies of the cart at Location X compared with the kinetic and potential energies of the cart at Location Y?

• The cart has more potential energy and less kinetic energy at Location X than it has at Location Y

• The cart has less potential energy and more kinetic energy at Location X than it has at Location Y

• The cart has the same amounts of potential energy and kinetic energy at Location X as it has at Location Y

• The cart has more potential energy and kinetic energy at Location X than it has at Location Y

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5