revision

The known fixed quantity

• measurement

• standard unit of measurement

• unit

• unknown quantity

A cubit is :

• the length from shoulder to the elbow

• the length from shoulder to the finger tips

• the length from knees to the toes

• the length from elbow to the finger tips

In the ------ the French created the metric system

• 1998

• geez dates are to complicated for my brain so.....I.DON'T.KNOW

• 1790

• 1969

The SI unit of length

• Centimetre (cm)

• Metre (m)

• Millimetre (mm)

• Kilometre (km)

The known quantity and unknown quantity in 45m is:

• known quantity =45 unknown quantity =m

• known quantity =m unknown quantity = 45

• known quantity =4 unknown quantity =5

• none of the above

motion is said the be relative

pick the correct example

• an object appears to be in motion to one observer but appears to be at rest to another observer

• an object appears to be in motion to both observers

• an object appears to be at rest for both observers

• none of the above

when a body moves along a straight path it is called ---------------

• circular motion

• periodic motion

• rectilinear motion

• rotatory motion

a child swinging on a swing is -------- motion

• rotatory motion

• circular motion

• periodic motion

• rectilinear motion

When the a fan is switched on it's blades has ------- motion

• circular

• rotatory

• both a and b

• rectilinear

the earth on it's axis has ------- motion

• rotatory

• rectilinear

• circular

• periodic