10. Work, Power, and Impulse.

Question 1

Define and Encode Dynamics

Answer 1

Dynamics use forces and laws like newton’s and Hooke’s law to study why things move.

Question 2

Define and Encode work

Answer 2

The process of moving an object with a force in the same direction of the applied force (the unit of work is Joules).

Question 3

What are the 2 Equations for work? Encode.

Answer 3

1. W=fd

2. W = fdcos(0)

Question 4

Define and Encode Impulse

Answer 4

When a force is applied for a period of time it creates impulse which is useful to survive a deadly crash, and impulse can be a change in momentum (the unit for impulse is kgm/s).

Question 5

What is the equation for impulse? Encode

Answer 5

J (with an arrow on the top) = Ft

Question 6

Define and Encode Power

Answer 6

Power is the BANG! and is calculated when you divide work with time (the unit for power is watts).

Question 7

What is the equation for power? Encode.

Answer 7

P = W/t