How much work is done by a student holding a book with a force of 5N and walking forward 10 m?
Question 6
6.
How much work is done by a shopper pushing a cart with 17 N of force, 26 m?
Question 7
7.
Question 8
8.
Question 9
9.
What is the power in the hydraulic lift that lifts Goofy 10 m, with a force of 15 N, in 10 s?
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
A 60 kg biker is moving at 6.8 m/s. How much kinetic energy does the biker have?
Question 15
15.
A 58 kg Olympic diver is waiting at the top of a 30 m diving platform. How much potential energy does the diver have?
Question 16
16.
If a 2.5 kg cat is in a tree and has 435 J of energy, how high is the tree?
Question 17
17.
What is the GPE at the top?
Question 18
18.
What is the KE right before it hits the ground?
Question 19
19.
What is the velocity right before it hits the ground?
Question 20
20.
A 10 kg ball is thrown in the air with a velocity of 3 m/s. How much potential energy will the ball have at the top?
Question 21
21.
A 10 kg ball is thrown in the air with a velocity of 3 m/s. How high does it go?
Question 22
22.
Question 23
23.
Question 24
24.
Question 25
25.
A 2 kg object was thrown with an initial velocity of 20 m/s. What is the GPE at the top?
Question 26
26.
A 2 kg object was thrown up from 0m with an initial velocity of 20 m/s. What is the height it reaches?
Question 27
27.
A car produces 1500 J of heat to stop. If the car weighs 750 kg, what is the velocity the car had before braking?
Question 28
28.
How much work is done as a 2 kg ball is kicked at 5 m/s?
Question 29
29.
A sling shot pulls a pumpkin back with 50 J of kinetic energy. How much elastic energy is stored in the slingshot?
Question 30
30.
A sling shot pulls a pumpkin back with 50 J of kinetic energy. How much work is done by the slingshot as it releases the pumpkin?
Question 31
31.
A 100 N barbell is lifted 2.5 m over a weightlifters head as they move forwards. How much work is done on the barbell?
Question 32
32.
Draw the energy bar charts for the following stops on the ramp
Which forms of energy are included in Mechanical Energy?
Elastic
Gravitational Potential
Electric
Kinetic
Chemical
What does GPE directly depend on?
mass
velocity
height
gravity
What does KE directly depend on?
mass
velocity
height
gravity
Which scenario represents Kinetic Energy being transformed into Gravitational Potential Energy
A couple sitting in a tree
A pinball on a compressed spring
A baseball thrown up into the air
A bowling ball rolling down a lane
Two students are racing up 8 m of stairs with the same force. Student A reaches the top in 2.6 s, while Student B reaches the top in 3.1 s. Who does more work?
Student A
Student B
Both do the same amount of work
Two students are racing up 8 m of stairs with the same force. Student A reaches the top in 2.6 s, while Student B reaches the top in 3.1 s. Who has more power?
Student A
Student B
Both have the same amount of power
Where is Kinetic Energy the highest?
A
B
C
D
E
All are equal
Where is Potential Energy the highest?
A
B
C
D
E
All are equal
Where is Mechanical Energy the highest?
A
B
C
D
E
All are equal
Where is the ball moving the fastest?
A
B
C
D
E
All are equal
If mass were tripled, what affect would this have on GPE?
1/9 GPE
1/3 GPE
3 x GPE
9 x GPE
If mass were tripled, what affect would this have on KE?
1/9 KE
1/3 KE
3 x KE
9 x KE
If velocity were tripled, what affect would this have on KE?
