Motion

Question 1

Definitons

What is distance?

include symbol & the type of quantity

Answer 1

Distance (d) is the length between two points. It is a scalar quantity.

Question 2

Definitions

What is displacemnet?

include symbol & the type of quantity

Answer 2

Displacement (s) is the shortest distance between two points. It can also be defined as distance in a specified direction. It is therefore a vector quantity.

Question 3

Definitions

What is Speed?

include symbol & the type of quantity

Answer 3

Speed (s or v) is defined as the distance travelled per unit time. It is a scalar quantity.

Question 4

Speed

What is the formula for speed?

therefore state its si unit

Answer 4

s = d/t
avg s = total d/ total t

SI unit is ms^-1 or kmhr^-1

Question 5

Definitions

What is velocity?

include symbol & the type of quantity

Answer 5

The velocity (v) of a body in motion is defined as the rate of change of displacement. It is a vector quantity.

Question 6

Velocity

What is the formula for velocity?

Therefore state the SI unit

Answer 6

v = displacement/time
avg v= totlat displacment/total time

Si unit : ms^-1

Question 7

Definitions

What is acceleration?

include symbol & the type of quantity & what is it related to

Answer 7

Acceleration (a) is defined as the rate of change of velocity. It is a vector quantity and is related to the force applied to a body in order to give it motion. Acceleration can be either positive or negative.

Question 8

Acceleration

What is the formula for acceleration?