[LAB] Experiment 3: Conservation Of Energy

Question 1

the energy of motion of an object

Answer 1

Kinetic Energy

Question 2

the energy of an object due to its vertical position relative to a reference point (such as the surface of the earth).

Answer 2

Gravitational Potential Energy

Question 3

An object at a given height has a potential energy relative to a ____ reference point.

Answer 3

lower

Question 4

If the object is dropped, it gains ____________ and its ____________ is decreased as it falls.

Answer 4

Kinetic Energy
Potential Energy

Question 5

When an object is lifted, its ___________ changes depending on its mass, the acceleration due to gravity and its _____________

Answer 5

Gravitational Potential Energy
Height

Question 6

it states that energy is neither created nor destroyed; it can only be transferred or transformed to other forms of energy.

Answer 6

Law of conservation of energy

Question 7

Final Velocity formula

Answer 7

V = V0 - gt

Question 8

“v” means

Answer 8

final velocity

Question 9

“g” means

Answer 9

the acceleration of gravity

Question 10

“t”

Answer 10

time of fall

Question 11

“V0”

Answer 11

the initial velocity of the ball

Question 12

gravitational potential energy formula

Answer 12

GPE = mgh

Question 13

m

Answer 13

mass

Question 14

h

Answer 14

height

Question 15

Kinetic Energy Formula

Answer 15

KE = 1/2 m v2

Question 16

m

Answer 16

mass

Question 17

v

Answer 17

speed

Question 18

TE Formula

Answer 18

TE = GPE + KE

Question 19

Materials

Answer 19

1 Xplorer GLX
1 Photogate Head
1 Ball
1 Dyanmics Track or Steel tape
1 Clamp

Question 20

Procedures:
1. Set up the materials and the ________
2. Assign initial position of the ball. Drop the ball through the photogate head to a height ___________ below the initial position.
3. Record the ________ of the ball
4. Lower the height and repeat _______. Do this in ___ different heights
5. Compute the _____ and ______ of the ball at each height.
6.Compute the ___________ and compare this with the theoretical value. The theoretical value of the _________ is the TE at initial height, Yo.

Answer 20

Xplorer GLX
20 cm
Velocity
Step 2-3; 5 different heights
GPE and KE
Average total energy; total energy