A Physics Toolkit
Practice Test
1.
__________ describes how well the results of an experiment agree with the standard value.
a.
Parallax
b.
Significance
c.
Precision
d.
Accuracy
Hint
2.
Solve the following problem and express the answer in scientific notation: 4.75×10
3
kg + 8.24×10
3
kg.
a.
12,990 kg
b.
1,299.0 kg
c.
1299×10
3
kg
d.
12.99×10
3
kg
Hint
3.
The point at which a line crosses the
y
-axis is the __________.
a.
parallax
b.
y
-intercept
c.
slope
d.
rise
Hint
4.
In Figure 1-16, the
y
-intercept of the graphed line is 13.7 cm. What is the physical meaning of this intercept?
a.
It is the length of the spring when no masses are suspended from it.
b.
It is the distance from the top of the spring to the suspended mass.
c.
It is the distance from the bottom of the spring to the suspended mass.
d.
It is the length of the spring when the experiment is over.
Hint
5.
__________ describes the degree of exactness in a measurement.
a.
Accuracy
b.
Significance
c.
Parallax
d.
Precision
Hint
6.
The multiplier for SI units with the prefix
femto
is __________.
a.
1,000,000,000,000
b.
1/1,000,000,000,000,000
c.
1,000,000
d.
1/1,000,000,000
Hint
7.
Convert 57.7 kg to grams.
a.
577,000 g
b.
5.77×10
3
g
c.
5.77×10
4
g
d.
57.7×10
4
g
Hint
8.
In Figure 1-10, if a fourth student measured the spring's length to be 14.2 ± 0.2 cm, would this agree with any of the other students' measurements?
a.
Yes, it agrees with students 1 and 3.
b.
Yes, it agrees with only student 1.
c.
No.
d.
Yes, it agrees with all three students.
Hint
9.
What value is calculated by dividing rise by run?
a.
angular velocity
b.
length of a straight line
c.
acceleration of a moving object exhibiting uniform motion
d.
the slope of a straight line
Hint
