Science
Quantities & Measurement
Grade 7 · Middle School
Answer every question first, then press Finish to see your score and explanations.
- Question 1 of 20Easy
A quantity that does not depend on other quantities is called a ... quantity.
- Question 2 of 20Easy
The International System (SI) unit of length is ...
- Question 3 of 20Easy
The instrument used to measure the mass of an object is ...
- Question 4 of 20Easy
Which of the following is a base quantity?
- Question 5 of 20Easy
1 kilometer equals ... meters.
- Question 6 of 20Easy
The International System (SI) unit of temperature is ...
- Question 7 of 20Medium
A rope is 2.5 km long. Its length equals ... m.
- Question 8 of 20Medium
Which pair of a derived quantity and its unit is correct?
- Question 9 of 20Medium
A measuring instrument with a precision of 0.01 mm is ...
- Question 10 of 20Medium
The mass of a book is 500 grams. Its mass equals ... kg.
- Question 11 of 20Medium
Density is a derived quantity whose SI unit is ...
- Question 12 of 20Medium
Water in a measuring cylinder first reads 50 mL. After a stone is put in, the water level reads 70 mL. The volume of the stone is ...
- Question 13 of 20Medium
The most precise time-measuring instrument for timing a sprint is ...
- Question 14 of 20Medium
1 hour equals ... seconds.
- Question 15 of 20Hard
A block with a mass of 300 grams has a volume of 60 cm3. Its density is ...
- Question 16 of 20Hard
A table is 1.5 m long and 0.8 m wide. Its surface area is ...
- Question 17 of 20Hard
A car travels at 72 km/h. Its speed equals ... m/s.
- Question 18 of 20Hard
The density of water is 1 g/cm3. Expressed in kg/m3, its density is ...
- Question 19 of 20Hard
The number 0.00045 m written in scientific notation is ...
- Question 20 of 20Hard
An aluminium block has a volume of 100 cm3. If the density of aluminium is 2.7 g/cm3, its mass is ...