You overhear someone say "We should switch to nuclear. It creates more energy than is put in". Why is this statement incorrect?
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
What is the PE at 1?
Question 9
9.
What is the KE at 2?
Question 10
10.
What is the ME at 3?
Question 11
11.
What is the ME at 1?
Question 12
12.
What is the KE at 2?
Question 13
13.
What is the PE at 4?
Question 14
14.
A skier is at the top of a slope. Draw the graph that would represent the GPE as the skier starts down the slope.
Question 15
15.
A skier is at the top of a slope. Draw the graph that would represent the KE as the skier starts down the slope.
Question 16
16.
A skier is at the top of a slope. Draw the graph that would represent the ME as the skier starts down the slope.
Question 17
17.
The skier has a mass of 60 kg. A speedometer at the bottom of the slope records the skier's speed at 22 m/s. What is their KE at the bottom of the slope?
Question 18
18.
The skier has a mass of 60 kg. A speedometer at the bottom of the slope records the skier's speed at 22 m/s. What is their GPE at the bottom of the slope?
Question 19
19.
The skier has a mass of 60 kg. A speedometer at the bottom of the slope records the skier's speed at 22 m/s. What is their ME at the bottom of the slope?
Question 20
20.
The skier has a mass of 60 kg. A speedometer at the bottom of the slope records the skier's speed at 22 m/s. What is their ME at the top of the slope?
Question 21
21.
The skier has a mass of 60 kg. A speedometer at the bottom of the slope records the skier's speed at 22 m/s. What is their GPE at the top of the slope?
Question 22
22.
The skier has a mass of 60 kg. A speedometer at the bottom of the slope records the skier's speed at 22 m/s. What is the height?
Question 23
23.
40 J of work is done to move a 5 kg box across the floor. What is the velocity of the box?
Question 24
24.
An arrow is stretched back in a bow and with 25 J of energy. How much Elastic energy does the bow have once it is stretched?
Question 25
25.
An arrow is stretched back in a bow and with 25 J of energy. If the bow is 0.05 kg, how fast is it moving?
What is conservation of energy?
Energy is created and used efficiently
Energy is used for the purpose and destroyed after
Energy is not created or destroyed, just transforming into different forms
What forms of energy are included in Mechanical Energy?
Gravitational Potential
Elastic Potential
Chemical Potential
Kinetic
Electric
At which spot is KE the greatest?
A
B
C
D
E
All are equal
At which spot is ME the greatest?
A
B
C
D
E
All are equal
At which spot is velocity the greatest?
A
B
C
D
E
All are equal
How does Conservation of Energy apply to Mechanical Energy?
The sum of the Kinetic and Potential is constant the whole time
The amount of Kinetic Energy is constant the whole time
The amount of Potential Energy is constant the whole time