Unit 4: How far, How fast, How much faster?

Question 1

Velocity

Answer 1

• Change in displacement with regards to time
• Measures how fast an object is traveling
• Speed + Direction
• m/s

Question 2

Distance

Answer 2

• How much an object has moved
• Measure of space
• Scalar quantity: No direction or negative values
• metres

Question 3

Displacement

Answer 3

• How far an object has traveled (distance between the start and endpoint)
• Measure of space
• Vector quantity: Direction and possible negative values
• metres

Question 4

Speed

Answer 4

• Change in distance with regards to time
• Measures how fast an object is traveling
• m/s

Question 5

Acceleration

Answer 5

• Change in velocity relative to time
• m/s^2
• vector
• can be negative - decelleration