G7_Physics_test1_Revision_1

What is a physical quantity made up of?

• A value

• A unit

• A value and a unit

• A unit and direction

SI unit of length

• mm

• m

• cm

• km

Convert 650m to km

• 6.5

• 0.65

• 65

• 0.065

Convert 4691 milligrams to grams

• 46.91

• 46910

• 4.691

• 469100

What is the best definition for mass

• How much space an object takes up

• How much matter an object contains

• Force exerted by earth on the object

• None of the above

What do you use to measure the mass of an object?

• Electronic balance

• Water displacement method

• Beaker

• Length x width x height

The mass of an empty beaker is measured and recorded.

A sample of snow is collected in the beaker and sealed with plastic wrap.

The mass of the sealed beaker and the snow is then measured and recorded.

Mass of empty beaker =160 grams.

Mass of beaker and snow= 500grams Afterthe snow melts,

What will be the mass of the water in the sealed beaker?

• 160 grams

• 340 grams

• 500 grams

• 660 grams

Convert 10 m= ………………………cm.

• 100cm

• 10,000cm

• 0.1cm

• 1000cm

What is the reason for weight?

• The amount of matter inside an object

• The amount of volume

• The pull of gravity

• The smallest particle

Which measurement would be different if you were on the Moonversus on Earth?

• Mass

• Weight

• Length

• All the above