AS physics definition Unit1-2

What is a vector quantity?

• A quantity with only magnitude

• A quantity with only direction

• A quantity with both magnitude and direction

• A quantity with neither magnitude nor direction

What does it mean for an equation to be homogeneous?

• An equation where all terms are of the same base units .

• An equation that has no solutions.

• An equation that is linear.

• An equation that is quadratic.

What is the symbol for the prefix 'pico'?

• p

• n

• μ

• pico

What is the value for the prefix 'nano'?

• 10^-9

• 10^-6

• 10^-3

• 10^-12

What is the symbol for the prefix 'micro'?

• m

• μ

• n

• p

What is the value for the prefix 'milli'?

• 0.001

• 0.01

• 0.1

• 1

What is the symbol for the prefix 'centi'?

• c

• m

• k

• d

What is the value for the prefix 'deci'?

• 0.1

• 10

• 0.01

• 100

What is the definition of uncertainty in measurement?

• The total range of value within which the measurement is likely to lie

• The exact value obtained from a measurement.

• The process of measuring a quantity.

• The error that occurs during measurement.

Which type of error can be reduced by averaging?

• Systematic error

• Random error