# Physics 1.2 - Measurements And Uncertainties

7 Questions | Total Attempts: 554  Settings  • 1.
The age of the universe is 14 billion years. How many seconds is 14 billion years closest to?
• A.
• B.
• C.
• D.
• 2.
Which of the following is equivalent to the derives unit J? J is the unit of work.
• A.
• B.
• C.
• D.
• 3.
If the diameter of an atom is about 100pm, what is diameter in terms of km?
• A.
• B.
• C.
• D.
• 4.
Which of the following is SI base unit?
• A.

Degree Celsius

• B.

Ampere

• C.

Coulomb

• D.

Gram

• 5.
A chemist is pouring some solution from a volumetric cylinder to a tube to perform some experiment. Before he pours the solution, he finds the volume of the solution is . After he pours the solution, he finds the volume of the solution is . What is the volume of the solution he pours into the tube?
• A.
• B.
• C.
• D.
• 6.
All the following are all systematic errors except...?
• A.

The flow of air causing the reading of the temperature to change from time to time

• B.

A volumetric cylinder that is used to measure the volume of the liquid has a bump on the cylinder.

• C.

An ammeter shows a current of 0.1 A before we link it to the circuit.

• D.

A student uses a ruler and reads his measurement always on one side of the reading.

• 7.
Which of the following measurements have three significant digits?
• A.

A table is reported to be 1.356 meters

• B.

A fly is measured to be 0.012 grams

• C.

An airplane is as heavy as 500 tons

• D.

A currant in a circuit is 20.0 mA

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