Units, Physical Quantities, and Measurements

Which of the following is not a fundamental physical quantity?

• length

• mass

• speed

• Temperature

Which of the following does not belong to the group?

• centiliter

• ton

• ounce

• pounds

How many liters are there in 1 kiloliter?

• 10 liters

• 100 liters

• 1000 liters

• 1100 liters

Which of the following best describe a scalar quantity?

• it has magnitude

• it has direction

• it has both magnitude and direction

• it has magnitude but differ in direction

Which of the following best describe a vector quantity?

• it has magnitude

• it has direction

• it has both magnitude and direction

• it has magnitude but differ in direction

It is the total amount of matter in an object.

• length

• mass

• force

• temperature

The System International unit for time is ________.

• minutes

• hour

• second

• day

Measurements as with other endeavors are prone to errors. one of the errors committed is caused by faulty instruments or incorrect handling of them. This type of error is called ________.

• natural

• man-made

• random

• systematic

How can we minimize random errors?

• by collecting more data

• by recalibrating the instrument

• by asking someone to repeat the process

• by changing the data

It refers to how close a measurement is to the correct value.

• Absolute measurement

• Accuracy

• Precision

• Prediction