Grade 9 Science: Calculations Worksheet
This worksheet covers fundamental calculations in science, including unit conversions, significant figures, and basic formula application, suitable for Grade 9 students.
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Grade 9 Science: Calculations Worksheet
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Read each question carefully and provide your answers in the space provided. Show all your work for calculation problems.
1. Which of the following is the correct conversion factor to change meters to kilometers?
1000 m / 1 km
1 km / 100 m
1 km / 1000 m
100 m / 1 km
2. How many significant figures are in the measurement 0.00340 g?
1
2
3
5
3. The density of an object is calculated by dividing its by its .
4. When multiplying or dividing measurements, the answer should have the same number of significant figures as the measurement with the number of significant figures.
5. Convert 2500 milligrams (mg) to grams (g). Show your work.
6. A car travels a distance of 150 km in 2.5 hours. Calculate the average speed of the car in km/h. Show your work.
7. The number 5.0 has one significant figure.
True
False
8. When adding or subtracting measurements, the answer should be rounded to the same number of decimal places as the measurement with the fewest decimal places.
True
False
9. A rectangular prism has a length of 5.2 cm, a width of 3.8 cm, and a height of 2.5 cm. Calculate its volume, ensuring your answer has the correct number of significant figures.
Use the words below to complete the sentences.
10. The closeness of a to its true value is called .
11. Repeating a multiple times to get consistent results is an example of good .