Energy conversions and conservation
Authored by Laura Galison
Physics
9th Grade
NGSS covered
Used 46+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following best represents the Law of Conservation of Energy?
Energy can be created but NOT destroyed
Energy can be destroyed but NOT created
Energy can NOT be created or destroyed
Energy can be created and destroyed
Tags
NGSS.HS-PS3-3
NGSS.HS-PS3-4
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following positions has the greatest amount of gravitational potential energy?
A
B
C
D
Tags
NGSS.MS-PS3-2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the mass of the cart is 50 kg and has a height of 40 meters, how much potential energy does it have? (PE=mgh, g=9.8m/s2)
1.25 Joules
45 Joules
2000 Joules
19,600 Joules
Tags
NGSS.MS-PS3-2
NGSS.MS-PS2-4
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
As soon as the roller coaster heads down the hill the potential energy converts into...
electrical energy
chemical energy
Kinetic energy
nuclear energy
Tags
NGSS.MS-PS3-2
NGSS.MS-PS3-5
NGSS.MS-PS3-1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If we know that Position A has 19.600 Joules of Potential energy, how much kinetic energy will there be at Position B?
19,600 Joules
9,800 Joules
4,900 Joules
0 Joules
Tags
NGSS.MS-PS3-2
NGSS.MS-PS3-5
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
We know kinetic energy at Position B will equal the potential energy at Position A based on....
Newton's 2nd Law
Newton's 3rd Law
The Law of Conservation of Mechanical energy
The Law of Gravity
Tags
NGSS.MS-PS3-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
We calculate the speed of the 50kg coaster and it clocks at 25 m/s at Position B, how much kinetic energy does it have? (KE=0.5mv2)
625 Joules
1,250 Joules
31,250 Joules
15,625 Joules
Tags
NGSS.MS-PS3-5
NGSS.MS-PS3-1
NGSS.MS-PS3-4
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