Energy Test Review

Joan used 300 N to move a load of books to a height of 10 meters in 25 seconds. How much power did she use?

• 120 J

• 250 J

• 335 J

• 545 J

Tags

NGSS.MS-PS3-4

According to the graph, what is the mechanical energy of the ball?

• 0 J
• 5 J
• 20 J
• 4 J

Tags

NGSS.MS-PS3-1

At what point on the track does the car have the least potential energy and the least kinetic energy?

• least potential energy: at the lowest; least kinetic energy: at the highest point

• greatest potential energy: at the starting point; greatest kinetic energy: at the ending point

• greatest potential energy: at the highest point on the track; greatest kinetic energy: at the lowest point on the track

• greatest potential energy: at the lowest point on the track; greatest kinetic energy: at the highest point on the track

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

Allison was running a race and accidentally kicked a rock. The rock slid across the track. What happened to the energy in this scenario?

• Allison's potential energy transformed into kinetic energy

• The energy transferred from Allison to the rock.

• Kinetic energy transformed into potential energy
• The rock destroyed all of the energy

Tags

NGSS.MS-PS3-5

Plants use a process called photosynthesis to make sugar and oxygen using water and carbon dioxide, in the presence of light. The energy produced is then used by humans to move. Which forms of energy are involved in this process?

• chemical
• electromagnectic
• kinetic
• thermal

Tags

NGSS.MS-LS1-6

How much work is done when 300 N of force is used to lift a dog 2.5 m?

• 300 J
• 450 J
• 500 J
• 750 J

The gravitational potential energy (GPE) is the result of

• Its elasticity
• The gravitational pull of the Earth
• Its kinetic energy
• Its speed and mass

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

A tennis ball that has a weight of 10 N was placed on a stand that was 1.2 meters above the ground. How much potential energy does the ball have?

• 52 J

• 408 J
• 12 J

• 720 J

Tags

NGSS.MS-PS3-2

A train sits at the top of a hill and then rolls down onto the track. What has happened to the energy in this scenario?

• The potential energy transformed into kinetic energy
• The energy transferred from the ramp to the car
• The kinetic energy transformed into potential energy
• the ramp created more energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Force moving an object over a distance refers to ______.

• Work
• Movement
• Power
• Energy

Tags

NGSS.MS-PS3-5