WorksheetsPhysics Diagnostic Test
Total questions: 20
Worksheet time: 10mins
Which of the following quantities is a fundamental quantity in the International System of Units (SI)?
Density
Electric Current
Force
Velocity
A student measures the length of a table to be 150.2 cm. How many significant figures are in this measurement?
2
3
4
5
The speed of light in a vacuum is approximately 300,000,000 meters per second. How is this number expressed in scientific notation?
3 X 106m/s
3 X 107m/s
3 X 108m/s
3 X 109m/s
A physicist studying the behavior of galaxies and the expansion of the universe is working in which branch of Physics?
Astrophysics
Mechanics
Optics
Thermodynamics
How many meters are there in 2.5 kilometers?
0.0025 m
250 m
2500 m
25000 m
Which branch of Physics deals with the relationship between heat, work, and energy?
Acoustics
Mechanics
Optics
Thermodynamics
What is the area of a rectangle with a length of 5.2 cm and a width of 3.0 cm, paying attention to significant figures?
15 cm2
15.60 cm2
16 cm2
16.6 cm2
The study of the forces and motion of objects is the central focus of which branch of Physics?
Geophysics
Mechanics
Nuclear Physics
Plasma Physics
What is the result of the following calculation expressed in correct scientific notation: (2.5X104)+(1.2X103) ?
2.62 X 102
3.7 X 102
2.62 X 104
3.7 X 104
What is the most likely specialization of a scientist investigating the properties of subatomic particles like quarks and leptons?
Biophysics
Optics
Particle Physics
Solid-State Physics
In physics, what are quantities that are independent base quantities, such as length, mass, and time, referred to as?
Derived quantities
Fundamental quantities
Scalar quantities
Vector quantities
Consider two sets of density measurements for a material with a true value of 1.15 g/mL: Set X: 1.14 g/mL, 1.16 g/mL, 1.15 g/mL Set Y: 1.00 g/mL, 1.10 g/mL, 1.20 g/mL Which set demonstrates higher precision and accuracy based on the data?
Set X is high precision and high accuracy; Set Y is low precision and low accuracy.
Set X is low precision and high accuracy; Set Y is high precision and low accuracy.
Set X is high precision and low accuracy; Set Y is low precision and high accuracy.
Both sets show high precision and high accuracy.
Calculate the sum of 2.36 and 12.1. Round your answer to the appropriate number of significant figures for addition.
14.46
14.5
14.4
14
How many significant figures are in the number 5030.0?
A. 3
B. 4
C. 5
D. 6
If you are converting a number from scientific notation to standard notation and the exponent is negative, which direction should you move the decimal point?
To the right to make a larger number
To the left to make a larger number
To the right to make a smaller number
To the left to make a smaller number
If you are determining the number of significant figures in 42.50, why is the trailing zero counted as significant?
All zeros are significant.
It is a placeholder zero.
There is a decimal point present in the number.
It is a non-zero number.
A student consistently measures the length of a rod as 15.2 cm, 15.3 cm, and 15.2 cm. The actual length of the rod is 18.0 cm. How would you describe these measurements in terms of accuracy and precision?
High accuracy and high precision.
Low accuracy and high precision.
High accuracy and low precision.
Low accuracy and low precision.
A scientist measures the boiling point of a liquid as 98.1°C, 101.5°C, and 99.8°C. The accepted boiling point is 100.0°C. Which statement best describes these results?
High accuracy and high precision.
Low accuracy and high precision.
High accuracy and low precision.
Low accuracy and low precision.
The variables that are usually observed for change in an experiment are called:
dependent variables
independent variables
controlled variables
extraneous variables
Leona wants to track her science test scores over the course of the semester. Which of the following will best allow her to analyze her progress?
Bar graph
Line graph
Pie graph
Scatter graph
