Unit 2.1: Distance, speed and acceleration

Question 1

What is the difference between a scalar and a vector?

Answer 1

A scalar is a number, whereas a vector is a number with a direction

Question 2

How are distance and displacement different?

Answer 2

They both measure how far something has travelled, but displacement also says the direction.

Question 3

What is the equation for speed?

Answer 3

Speed(m/s) = Distance(m)/Time(s)

Question 4

What is the equation for Velocity?

Answer 4

Velocity = Displacement/Time

Question 5

Give some examples of Scalar quantities.

Answer 5

Speed, Distance, Mass, Time.

Question 6

Give some examples of Vector quanitities.

Answer 6

Velocity, Displacement, Force, Acceleration, Momentum.

Question 7

What is the equation for acceleration?

Answer 7

Acceleration = change in Velocity/Time

Question 8

Is acceleration and deceleration the same?

Answer 8

Deceleration is similar to acceleration, just negatice acceleration, when a car slows down

Question 9

What is constant acceleration?

Answer 9

Accelerating or deceleration at a constant rate.