3- Kinetic Energy

What is kinetic energy? (KE)

• energy in motion
• energy that is created
• energy that is lost
• energy that is stored

Tags

NGSS.MS-PS3-1

What unit is kinetic energy measured in?

• joules
• grams
• miles
• centimeters

A laptop sitting on a table has potential energy because of the gravitational pull of the Earth. Which of the following would change the energy to kinetic energy?

• Looking at the screen
• Putting a cute sticker on it
• Yelling at it
• Sliding it across the table

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

At which position does the pendulum below have the greatest kinetic energy?

• 3
• 2 and 4
• there is no kinetic energy
• 1 and 5

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A graph showing the kinetic energy and mass of objects traveling at 10 m/s is shown. In order for an object moving at 10 m/s to have a kinetic energy of 700 Joules, the object must have a mass in the range of

• 0–10 kg
• 10 - 20 kg
• 20 - 30 kg
• 30 - 40 kg

Tags

NGSS.MS-PS3-1

A graph showing the kinetic energy and speed of a moving object is provided. Which of the following can be concluded from the graph?

• Kinetic energy only changes when speed changes
• Speed is only related to the size of an object.
• All moving objects have the same kinetic energy.
• Kinetic energy increases as speed increases

Tags

NGSS.MS-PS3-1

The energy of a pendulum is recorded at different positions in the table below. Use the data in the table to determine the amount of kinetic energy the pendulum had at Position 2.

• 33.3 J
• 46.5 J
• 50 J
• 54.1 J