Quiz about General Physics 1 Quarterly Exam

Question 1

Which one of the following is NOT a fundamental quantity?

Accepted Answer

weight

Answer

Length

Answer

mass

Answer

time

Question 2

How many base units are there in the SI?

Accepted Answer

seven

Answer

four

Answer

five

Answer

six

Question 3

What is the correct scientific notation of 0.00034?

Accepted Answer

3.4x10-4

Answer

34x106

Answer

3.4x104

Answer

34x10-6

Question 4

How is the number 0.009834 expressed in scientific notation?

Accepted Answer

9.834X10-4

Answer

9.834x104

Answer

9.834X103

Answer

9.834X10-3

Question 5

How many meters are there in an inch?

Accepted Answer

2.54

Answer

0.0254

Answer

0.254

Answer

24.5

Question 6

How many significant figures are there in 6712.460?

Accepted Answer

7

Answer

3

Answer

4

Answer

6

Question 7

Which of the following numbers has the greatest number of significant figures?

Accepted Answer

103.07

Answer

124.5

Answer

0.09914

Answer

5.048x105

Question 8

What is the difference between 3.0 and 3.0000?

Accepted Answer

3.0000 represents a quantity that is known more precisely than 3.0

Answer

3.0000 could be the result of an intermediate stop in a calculation; 3.0 as to result from a final step.

Answer

There is no difference

Answer

They convey the same information, but 3.0 is preferred for ease of writing.

Question 9

Which of the following methods is more convenient to use in adding more than two vectors?

Accepted Answer

Component Method

Answer

Cosine Law

Answer

Sine Law

Answer

Parallelogram Method

Question 10

Joseph measures his bathroom tiles to be 10 in. by 8 in. Given the conversion factor, 1 in=2.54 cm., what are the length and width in cm?

Accepted Answer

25.40 cm by 24.50 cm

Answer

20.32 cm by 19.90 cm

Answer

25.50 cm by 20.32 cm

Answer

35.40 cm by 12.32 cm

Question 11

Which statement is not true?

Accepted Answer

Precise measurements are always accurate.

Answer

Accurate measurements are always precise.

Answer

Precise measurements can be inaccurate.

Answer

Inaccurate measurements can be precise.

Question 12

STUDENT A

1.43 g

1.52 g

1.47 g

1.42 g

STUDENT B

1.43 g

1.40 g

1.46 g

1.44 g

STUDENT C

1.54 g

1.56 g

1.58 g

1.50 g

STUDENT D

0.86 g

1.24 g

1.52 g

1.42 g

Four students each measured the mass of one 1.43 g sample four times. The results in the data above indicate that the data collected by ________ reflect the greatest accuracy and precision.

Accepted Answer

Student C

Answer

Student A

Answer

Student B

Answer

Student D

Question 13

It is described as the degree of how close the measurements are to the true value.

Accepted Answer

Accuracy

Answer

Precision

Answer

Reliability

Answer

Validity

Question 14

Refers to the degree to which successive measurements agree with each other.

Accepted Answer

Precision

Answer

Accuracy

Answer

Reliability

Answer

Validity

Question 15

Which group of measurements is most precise?

Accepted Answer

0.005 g, 0.0049 g, 0.0051 g

Answer

1.23 cm3, 2.21 cm3, 9.92 cm3

Answer

23.4 mm, 12.4 mm, 50.2 mm

Answer

2.3 x 10-2 kg, 2.31 x 102 kg, 2.29 x 1012 kg

Question 16

The mass of a sample of a copper nitrate is 3.82 g. A student measures the mass and finds it to be 3.81 g, 3.82 g, 3.79 g, and 3.80 g in the first, second, third and fourth trial respectively. Which of the following statements is true for his measurements?

Accepted Answer

They have good accuracy and precision.

Answer

They have good accuracy but poor precision.

Answer

They have poor accuracy but good precision.

Answer

They are neither precise nor accurate.

Question 17

Francisca, a chemistry student forgot to calibrate her analytical balance before she measured the mass of her reactants in a chemistry experiment. She committed 78 percent error in her measurement. What type of measurement did she commit?

Accepted Answer

Systematic Error

Answer

Random Error

Answer

Either A or B

Answer

Neither A nor B

Question 18

Uncontrolled changes in air pressure while determining the boiling point of a liquid give rise to __________.

Accepted Answer

Random Error

Answer

Personal Error

Answer

Relative Error

Answer

Systematic Error

Question 19

Scalars are quantities that can be described by a single number which can be positive, negative, or zero. On the other hand, vectors are quantities which require the specification of magnitude and direction. Of the following quantities, which one is a vector?

Accepted Answer

Velocity

Answer

Charge

Answer

Speed

Answer

Time

Question 20

What do you call to the pulling or pushing on an object that may cause it to move, change direction, move faster or slower, or even stop its motion?

Accepted Answer

Force

Answer

Acceleration

Answer

Power

Answer

Work

Question 21

If A and B are vectors and B = -A, which of the following is true?

Accepted Answer

The direction angle of B is equal to the direction angle of A plus 180 degrees.

Answer

The magnitude of B is equal to the negative of the magnitude of A.

Answer

A and B are perpendicular.

Answer

A + B = 2A

Question 22

Which method of adding vectors is otherwise known as the head-to-tail method?

Accepted Answer

Graphical Method

Answer

Component Method

Answer

Parallelogram Method

Answer

Polygon Method

Question 23

A student adds two displacements with magnitudes of 3.0 m and 4.0 m, respectively. The angle of separation between the vectors is 45 degree, what is the resultant vector?

Accepted Answer

6.8 m

Answer

1.3 m

Answer

5.0 m

Answer

7.8 m

Question 24

The following are vector quantities EXCEPT:

Accepted Answer

Speed

Answer

Acceleration

Answer

Velocity

Answer

Displacement

Question 25

Which of the following is a derived quantity?

Accepted Answer

Force

Answer

Mass

Answer

Temperature

Answer

Time

Question 26

Convert 6 721 millimeters to meters.

Accepted Answer

67.21

Answer

6.721

Answer

672 100

Answer

6 721 000

Question 27

If 2 mL of liquid weighs 4 g, its density is

Accepted Answer

1 g/mL

Answer

O.5 g/mL

Answer

2 g/mL

Answer

4 g/mL

Question 28

10-4/10-2

Accepted Answer

10-2

Answer

10-6

Answer

102

Answer

106

Question 29

1.5 X 105

Accepted Answer

1 500 000

Answer

0.000015

Answer

150 000

Answer

11 500 000

Question 30

How many yards in 9 mi?

Accepted Answer

15 840 yards

Answer

12 672 yards

Answer

14500 yards

Answer

16 040 yards

Question 31

Which of the following quantities can never be negative?

Accepted Answer

Distance

Answer

Displacement

Answer

Velocity

Answer

Acceleration

Question 32

A boy walks 4 m east, then 3 m west. What is his total distance traveled?

Accepted Answer

7 m

Answer

1 m

Answer

4 m

Answer

3 m

Question 33

In the same problem above, what is his displacement?

Accepted Answer

1 m east

Answer

1 m west

Answer

7 m east

Answer

7 m west

Question 34

What is the difference between distance and displacement?

Accepted Answer

Distance is the total path covered, displacement is the shortest path from start to finish.

Answer

Distance is vector, displacement is scalar.

Answer

Distance depends on direction, displacement does not.

Answer

Both are the same.

Question 35

A car moves 6 km north, then 8 km east. What is its displacement?

Accepted Answer

10 km

Answer

14 km

Answer

2 km

Answer

12 km

Question 36

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Speed

Answer

Distance

Question 37

Which of the following is a scalar quantity?

Accepted Answer

Speed

Answer

Force

Answer

Acceleration

Answer

Displacement

Question 38

Identify which of the following sets contains only vector quantities.

Accepted Answer

Velocity, displacement, acceleration

Answer

Time, mass, speed

Answer

Distance, force, speed

Answer

Energy, pressure, work

Question 39

If two vectors are in the same direction, their resultant is:

Accepted Answer

The sum of the magnitudes

Answer

The difference of the magnitudes

Answer

Always zero

Answer

Cannot be determined

Question 40

Which of the following best describes a scalar?

Accepted Answer

Has magnitude only

Answer

Has both magnitude and direction

Answer

Always negative

Answer

Always a physical vector

Question 41

A runner makes one lap around a 400 m circular track. What is the distance covered?

Accepted Answer

400 m

Answer

0 m

Answer

200 m

Answer

800 m

Question 42

In the same problem above, what is the displacement after one lap?

Accepted Answer

0 m

Answer

400 m

Answer

200 m

Answer

Cannot be determined

Question 43

A person walks 3 km north and 4 km east. What is the magnitude of his displacement?

Accepted Answer

5 km

Answer

7 km

Answer

1 km

Answer

12 km

Question 44

A car moves 20 km east and then 15 km west. What is the net displacement?

Accepted Answer

5 km east

Answer

35 km east

Answer

5 km west

Answer

20 km west

Question 45

Two forces of 5 N and 12 N act at right angles. What is the resultant vector magnitude?

Accepted Answer

13 N

Answer

7 N

Answer

12 N

Answer

17 N

Question 46

Distance is always ________.

Accepted Answer

greater than or equal to displacement

Answer

less than displacement

Answer

equal to displacement

Answer

independent of displacement

Question 47

If displacement = 0, which is always true?

Accepted Answer

Distance > 0

Answer

Distance = 0

Answer

Speed = 0

Answer

Velocity = 0

Question 48

Which of the following pairs are correctly matched?

Accepted Answer

Displacement - vector

Answer

Distance - vector

Answer

Velocity - scalar

Answer

Speed - vector

Question 49

Which statement is incorrect?

Accepted Answer

Distance and displacement are always equal.

Answer

Displacement is the change in position.

Answer

Distance can never be negative.

Answer

Displacement can be zero even if distance is not zero.

Question 50

The magnitude of displacement is equal to distance when:

Accepted Answer

The motion is in a straight line in one direction

Answer

The object moves in a circular path

Answer

The motion involves a U-turn

Answer

The displacement is zero

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