IGCSE Physics chapter 1 Measurements and units

meaning of µ (micro)

• 10⁶

• 10^-9

• 10^-3

• 10^-6

write 0.005 in scientific notation

• 5/1000

• 5x10^-3

• 5x10³

• 5 millimeters

WHAT IS A PHYSICAL QUANTITY MADE UP OF ?

• A value

• A unit

• A value and a unit

• A unit and direction

define measurement

• a reading

• A unit or system of measuring. The size, length, or amount of something, as established by measuring

• an observation of a size of something

• a estimate without a unit of measurement of what the size of something is

Tags

NGSS.MS-PS3-4

equation for density

• mass/volume

• volume/mass

• mass x volume

• volume x mass

SI unit for length

• mm

• m

• cm

• km

what does a micrometer have

• revolving barrel with a thread

• a extra sliding scale

• none of these

• revolving barrel with an extra scale on it

what is the room temperature?

• 21

• 22

• 23

• 23℃

a pendulum takes two seconds to make a complete swing . what could one swing be called

• time taken

• period

• change in time

• time

time taken for 20 swings is 46 seconds. how much time is needed for 1 swing

• 0.43478

• 3.2

• 20.46s

• 2.3 seconds