Energy

Question 1

What is Potential energy?

Answer 1

Stored energy

Question 2

What is Potential energy’s formula?

Answer 2

Pe = mgh

Question 3

What is Kinetic Energy?

Answer 3

Released energy and energy in motion

Question 4

What is the formula for Kinetic Energy?

Answer 4

Ke = 1/2mv^2

Question 5

True or False, Mechanical energy i = Mechanical energy f?

Answer 5

True

Question 6

If Mechanical Energy i = Mechanical energy f, then that means the formula that uses potential and kinetic energy is PEi + KEi = PEf + KEf. True or False

Answer 6

True

Question 7

We have a roller coaster cart with three points, A,B, and C. The kart has a mass of 10kg while having a velocity(a) of 6m/, a Height(a) of 6m, and a Height(c) of 4m, find the velocity at point B.

Answer 7

Vb = 12.39m/s

Question 8

Use the given and answer from number 7 to solve for the velocity at point C.

Answer 8

Vc = 8.68m/s

Question 9

How would you solve for Mechanical energy?

Answer 9

Apply the formulas for Potential energy and Kinetic energy of each points, then add them both together in order to see if all 3 points share the same/close number of Joules.

Question 10

What is the formula for momentum?

Answer 10

p = mv

Question 11

What is the formula for Impulse?

Answer 11

I = ft

Question 12

What is the formula for Impulse-momentum Theorem?

Answer 12

P = I