WorksheetsPhysics Unit 1 Test
Total questions: 29
Worksheet time: 29mins
The ability of the tool or person to make an exact measurement is called (a) .
The study of matter, energy, and how they interact in nature is called (a) .
Match the following terms with their correct definitions.
Accuracy
How close you were to the desired result and your ability to repeat it.
Matter
Anything that has mass and occupies space.
Energy
The ability to do work or cause change.
Physics
The branch of science concerned with the nature and properties of matter and energy.
Precision
The degree to which repeated measurements under unchanged conditions show the same results.
The numbers taken from a measuring device plus one additional estimated value are called (a) .
Match the following scientific terms with their correct definitions.
Energy
The ability to cause change, produce heat, or do work.
Matter
Anything that has mass and takes up space.
Physics
The study of matter, energy, and the interactions between them.
Accuracy
How close a measured value is to the true value.
Precision
How close repeated measurements are to each other.
Match the following units with their correct classification in the SI system.
Newton
SI derived unit for force
Ampere
SI base unit for electric current
Kelvin
SI base unit for temperature
Mole
SI base unit for amount of substance
Seconds
SI base unit for time
2.3 km = _?_ mm
(a)
450 mm = _?_ m
(a)
0.00024 Gg = _?_ kg
(a)
1.3E6 cg = _?_ ng (answer must be in scientific notation)
(a)
42000 m = _?_ km
(a)
68 ns = _?_ s (answer must be in scientific notation)
(a)
0.038 Gs = _?_ s (answer must be in scientific notation)
(a)
14.8 kg = _?_ g
(a)
Calculate the percent yield of a reaction that had a theoretical yield of 3.76 g and an actual yield of 1.45 g.
(a)
An object has a mass of 35.0 grams. On Alice's balance, it weighs 34.85 grams. What is the percent error of her balance?
(a)
Jack uses his thermometer and finds the boiling point of ethyl alcohol to be 75°C. He looks in a reference book and finds that the known boiling point of ethyl alcohol is 80°C. What is his percent error?
(a)
How many significant digits are in 250?
(a)
How many significant digits are in 0.250?
(a)
How many significant digits are in 1,003,000?
(a)
How many significant digits are in 0.000238?
(a)
How many significant digits are in 6.010E12?
(a)
In the correct number of significant digits, what is 150 + 17?
(a)
In the correct number of significant digits, what is 135 x 17?
(a)
In the correct number of significant digits, what is
(1.25E6)x(4.0E8)?
(a)
The attendance for the basketball game was estimated to be 15,000 people but 12,000 people attended. What was the percent error?
16.67%
25%
2500%
80%
(a) is a derived unit in the SI system.
Match each measured mass with its percent error (rounded to the nearest 0.1%) when compared to a 100 g standard mass.
1.5%
98.5 g
0.5%
99.5 g
2.5%
97.5 g
0.15%
99.85 g
Match the following SI units with the physical quantities they are the base units for.
Newton
Force
Joule
Energy
Watt
Power
Meter
Length
