6th Grade Post Test-Energy

1. Which graph shows the correct relationship between mass and kinetic energy?

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• 
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Tags

NGSS.MS-PS3-1

2. Which graph shows the correct relationship between speed and kinetic energy?

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Tags

NGSS.MS-PS3-1

3. Two penguins are swimming in the ocean. The kinetic energy of the Gentoo penguin could be __.

• 2
• 6
• 12
• 24

Tags

NGSS.MS-PS3-1

4. At an amusement park, a group of riders boarded a roller coaster train and sat down. Once everyone was safely in their seats, the ride operator flipped a switch, and electricity flowed to a motor below the track. The motor pulled the train forward and out of the station. Which of the following is better evidence that the roller coaster train's kinetic energy changed?

• The train was stopped then it began to move forward and out of the station.
• Electricity started flowing towards the motor when the ride operator flipped the switch.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

5. The roller coaster train slowly moved away from the station and over the top of a tall hill. As the train began to rush down the hill, the riders felt like they were rising out of their seats! The train sped up until the track flattened out at the bottom of the hill. At the bottom, the riders felt like they were being pushed down into their seats. Consider the following Claim: As the train rushed down the hill, gravitational potential energy was converted into kinetic energy. Which piece of Evidence best supports the Claim?

• The train kept moving when it reached the flat part of the track.
• The speed of the train increased as the height of the train decreased.
• The people in the train felt like they were being pushed down at the bottom of the hill.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

6. Next, the roller coaster train went through several turns and sped toward a shorter hill. As the train rolled up the hill, it slowed down. The train went over the top of the hill and then sped up again as it raced down the other side of the hill. As the train went up the hill, _____ was converted into ____. As the train went down the hill _____ was converted into_____.

• kinetic energy..gravitational potential energy; gravitational potential energy...kinetic energy
• gravitational potential energy...kinetic energy; gravitational potential energy...kinetic energy
• gravitational potential energy...kinetic energy; kinetic energy...gravitational potential energy
• kinetic energy...gravitational potential energy; kinetic energy...gravitational potential energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

7. The roller coaster train went through a final big turn and then headed back toward the station. The train slowed down and brakes on the track squealed and heated up. Once the train came to a stop in the station, the riders stood up and left. Match each Claim with the Evidence that supports it. Claim 1: Kinetic Energy Decreased Claim 2: Thermal Energy Increased Claim 3: Sound Energy Increased

• 1: The train slowed down. 2: The brakes squealed. 3: The brakes heated up.
• 1: The brakes heated up. 2:The train slowed down. 3: The brakes squealed.
• 1: The brakes squealed. 2: The brakes heated up. 3: The train slowed down.
• 1: The train slowed down. 2: The brakes heated up. 3: The brakes squealed.

Tags

NGSS.MS-PS3-5

8. Look at the graph below. What would the kinetic energy of the object be after 7 seconds?

• 200 J
• 400 J
• 600 J
• 800 J

Tags

NGSS.MS-PS3-1

9. Look at the graph below. At what time would the kinetic energy be equal to 200 J?

• 1 sec
• 2 sec
• 1 min
• 2 min

Tags

NGSS.MS-PS3-1

10. You choose two marbles to roll down a ramp. One is orange and one is blue. The marbles are the same size but the blue one feels heavier than the orange one. You release both marbles from the top of the same ramp at the same time. What would you expect to happen?

• The orange marble will win because it is lighter and will roll down the hill easier.
• The blue marble will win because it is heavier which gives it more kinetic energy.
• It will be a tie because the marbles are the same size, starting at the same time, at the same place.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS2-2