Topic 2 - Mechanics

Question 1

Newtons First Law of Motion

Answer 1

An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force

Question 2

Newtons Second Law of Motion

Answer 2

The acceleration of an object depends on the mass of the object and the amount of force applied (F=ma)

Question 3

Newtons Third Law of Motion

Answer 3

Whenever one object exerts a force on another object, the second object exerts an equal and opposite force on the first

Question 4

Acceleration Modified Atwood

Answer 4

Question 5

Acceleration Modified Atwood (friction)

Answer 5

Question 6

Kinetic Energy (Equation)

Answer 6

Question 7

Potential Energy : Gravity

Answer 7

Question 8

Potential Energy : Elastic (spring)

Answer 8

Question 9

Where does energy loss go? (Frictional loss of E)

Answer 9

• Heat
• Sound
• Light

Question 10

Work - KE Theorem

Answer 10

for cos(0)

Question 11

conservation of momentum

Answer 11

momentum in a system can not be losed, instead energy can be transfered amongst objects in the system

Question 12

Perfectly Elastic Collisions

Answer 12

Question 13

Inelastic Collisions

Answer 13

Question 14

Newtons Second Law (in terms of momentum)

Answer 14