Question 1

This is the art of comparing a value with a standard quantity.

Accepted Answer

Measurement

Answer

Accuracy

Answer

Physical quantities

Answer

Precision

Question 2

Scientific figures are important to identify in converting natural numbers into scientific notation. Which of the following should NOT be considered in this process?

Accepted Answer

All zeros are considered significant.

Answer

All non-zero numbers are considered significant.

Answer

None of the above

Answer

Trailing zeros are not considered significant.

Question 3

Given that a measurement done resulted to a value of 0.000004 meters, how can it be represented using scientific notation?

Accepted Answer

4 x 10^-6 meters

Answer

4 x 10^-5 meters

Answer

4 x 10⁵ meters

Answer

4 x 10⁶ meters

Question 4

How can meaurements be considered as accurate?

Accepted Answer

when measured values are close to a theoretical value

Answer

none of the above

Answer

when values results with a small difference when subtracted with each other

Answer

when measured values are close with each other

Question 5

Given that the theoretical value is 5.27 kg, which of the following measured values is the most accurate?

Accepted Answer

5.269 kg

Answer

5.210 kg

Answer

5.021 kg

Answer

all of the above

Question 6

How can meaurements be considered as precise?

Accepted Answer

when measured values are close with each other

Answer

none of the above

Answer

when values results with a small difference when subtracted with each other

Answer

when measured values are close to a theoretical value

Question 7

Given that the theoretical value is 7.21 meters, which of the following sets of measured values from three trials is precised?

Accepted Answer

7.215 kg, 7.204 kg, 7.198 kg

Answer

1.121 kg, 4.516 kg, 7.631 kg

Answer

6,723 kg, 12.532 kg, 13.131 kg

Answer

all of the above

Question 8

Accuracy and precision of measured values is directly proportional with each other.

Accepted Answer

boolean://False

Question 9

Five trials were conducted in an experiment. Getting the average of the scores resulted to a mean of 169.8 meters. How can results be reported if the computed standard deviation is 1.5?

Accepted Answer

169.8 ± 1.5 meters

Answer

169.8 - 1.5 meters

Answer

169.8 + 1.5 meters

Answer

168.3 ± 1.5 meters

Question 10

These are physical quantities that are defined by both magnitude and direction.

Accepted Answer

vector quantities

Answer

physical quantities

Answer

none of the above

Answer

scalar quantities

Question 11

These are physical quantities that are defined by only the magnitude of the measured value,

Accepted Answer

scalar quantities

Answer

vector quantities

Answer

none of the above

Answer

physical quantities

Question 12

Which of the following is a vector quantity?

Accepted Answer

all of the above

Answer

velocity

Answer

displacement

Answer

acceleration

Question 13

Which of the following is a scalar quantity?

Accepted Answer

all of the above

Answer

speed

Answer

work

Answer

distance

Question 14

Which of the following is NOT TRUE about displacement?

Accepted Answer

The magnitude of an object's displacement is always equal to its distance.

Answer

The resultant vector in a graph can also be the displacement of a moving object.

Answer

The displacement of an object is the length drawn from the origin to the end of its positional position.

Answer

The displacement is defined by both magnitude and its direction.

Question 15

This scalar quantity is often described as a moving object's change in distance over the change in time.

Accepted Answer

speed

Answer

acceleration

Answer

none of the above

Answer

velocity

Question 16

Motion can be graphed in three ways. Which is NOT TRUE about graphing motion?

Accepted Answer

The area under the curve of a displacement vs. time graph is the distance travelled by the object.

Answer

None of the above

Answer

The slope of the velocity vs. time graph is the acceleration of the object.

Answer

The area under the curve of acceleration vs. time graph represents the velocity of the object.

Question 17

This is the motion of an object caused by the Earth's gravitational field.

Accepted Answer

Free fall

Answer

Uniform circular motion

Answer

Torque

Answer

Projectile motion

Question 18

Which of the following is NOT TRUE about free fall motion?

Accepted Answer

Free fall motion takes in consideration both the vertical and horizontal axes the object is situated in.

Answer

Free fall takes the arbitrary y-axis in defining an object's motion.

Answer

The magnitude of gravity plays an important role in defining free fall motion.

Answer

This kind of motion happens only in one dimension.

Question 19

Which of the following is TRUE about motion in two and three dimensions?

Accepted Answer

All of the above

Answer

The motion of an object in two or three dimensions is affected by the components of motion in these dimensions.

Answer

Describing motion in two dimensions requires using a certain coordinate system.

Answer

Motion in two or three dimensions can be evaluated as two or three one-dimensional motion.

Question 20

Which of the following is an example of motion in two to three dimensions?

Accepted Answer

Projectile motion

Answer

Free fall motion

Answer

Velocity

Answer

Speed

Question 21

This is an object which is projected with an initial velocity given by an external force which continues in motion by a curved path due to the gravitational pull of the earth.

Accepted Answer

Projectile

Answer

Range

Answer

Trajectory

Answer

Parabola

Question 22

Which of the following is TRUE about projectile motion?

Accepted Answer

all of the above

Answer

The vertical and horizontal components of projectile motion are independent with each other.

Answer

A travelling projectile travels a parabolic path called its trajectory.

Answer

The time that it takes for the projectile to go up is the same time it will take to go down.

Question 23

This is the particular point in a projectile's motion when it can no longer ascend.

Accepted Answer

maximum height

Answer

time of flight

Answer

initial velocity

Answer

range

Question 24

This is the horizontal distance travelled by the projectile.

Accepted Answer

range

Answer

maximum height

Answer

initial velocity

Answer

time of flight

Question 25

This is the overall time the projectile took going up and coming down.

Accepted Answer

time of flight

Answer

maximum height

Answer

initial velocity

Answer

range

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