Kinematics - Unit 1 (forces & motio)

Question 1

What is Kinematics

Answer 1

The study of motion without regard for the cause

Question 2

What is Dynamics

Answer 2

The study of the CAUSES of motion

Question 3

What is motion

Answer 3

A change in position

Question 4

What is a reference point (frame of reference)

Answer 4

Random location from which position of an object is being described

Question 5

Describe uniform motion

Answer 5

Motion in one direction at a constant speed

Question 6

Describe non-uniform motion

Answer 6

When an object speeds up, slows down or changes position
Also called ACCELERATION

Question 7

Describe Distance

Answer 7

• The SUM of the length of a path travelled
• SCALAR

Question 8

Describe Displacement

Answer 8

• The CHANGE in position from start to end
• VECTOR so, direction aware!!

Question 9

Describe speed

Answer 9

Distance travelled per time interval
- SCALAR

Question 10

Describe velocity

Answer 10

Change in position with time
- VECTOR, , so direction aware

Question 11

Describe a position vs time graph

Answer 11

It gives us info about speed or velocity (if position is included)
- curved exponential slope

Question 12

Describe a velocity vs time graph

Answer 12

It gives us acceleration
- linear slopes

Question 13

What is acceleration

Answer 13

The rate at which an object changes its velocity