Kinetic Energy Questions

Quiz
•
Science
•
8th Grade
•
Hard
+5
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Kinetic Energy of a 478 kg object that is moving with a speed of 15.89 m/s?
60,345.61 J
70,000 J
50,000 J
40,000 J
Tags
NGSS.HS-PS3-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Kinetic Energy of a 100 kg object that is moving with a speed of 132.5 m/s?
250,000 J
50,000 J
1,000,000 J
877,812.5 J
Tags
NGSS.HS-PS3-1
NGSS.HS-PS3-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s?
3,000 J
16,875 J
1,500 J
22,500 J
Tags
NGSS.HS-PS3-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 240 m/s?
12,000,000 J
48,000,000 J
2,400,000 J
34,560,000 J
Tags
NGSS.HS-PS3-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The diagram shows how one type of energy can be converted to another type of energy. In this case, KE is converted to GE which gets converted back to KE. The racquetball/basketball demonstration showed that energy can also be transferred from one object to another within a system. Consider the pendulum and the surrounding air molecules as a system. Which energy transfer diagram shows what causes the pendulum to slow down and eventually stop?
Tags
NGSS.MS-PS3-2
NGSS.MS-PS3-5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why does a ball stop bouncing?
Each time a ball hits the floor the KE gets converted to GE and some is lost to gravity. The GE gets transferred to KE and then to Elastic Energy. Friction also plays a role.
The ball stops bouncing because each time it strikes the ground some of its energy is transferred to the surroundings, so less remains for the ball. This continues until none remains for the ball and then it stops.
The ball stops bouncing because each time it strikes the floor the elastic energy absorbs the shock. The KE and GE decrease over time until it slows down and stops.
Answer explanation
The ball stops bouncing because each time it strikes the ground, some energy is lost to the surroundings. This energy loss continues until there is none left for the ball, causing it to stop.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-4
NGSS.MS-PS3-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
During a game of pool, the cue ball is rolling toward the eight ball that is at rest. Preeta claims that all of the kinetic energy in the cue ball will get transferred to the eight ball after they collide. Which graph best supports Preeta’s claim?
Tags
NGSS.HS-PS2-2
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