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G9 M1-M2-M3

Total questions: 133

Worksheet time: 3hrs 27mins

Name
Class
Date
1.

____ describes a rule of nature.

a)

Scientific theory

b)

Scientific method

c)

Scientific law

d)

Physics

2.

Scientists make an educated guess about a question they ask called a _____.

a)

hypothesis

b)

scientific theory

c)

scientific method

d)

model

3.

The experimental process that a scientist uses to solve a question involves a variety of ____

a)

hypothesis

b)

scientific laws

c)

scientific methods

d)

models

4.

A____ is an explanation supported by experimental results

a)

hypothesis

b)

scientific theory

c)

Scientific law

d)

model

5.

Physicists use ____ to accurately predict how systems will behave.

a)

graphs

b)

The line of best fit

c)

models

d)

relationships

6.

A paper airplane could be considered a scientific ____.

a)

law

b)

method

c)

model

d)

theory

7.

Fill in the blanks: A ____Scientific method_____ is a systematic way to observe, experiment and analyze the world.

4 lines
8.

Fill in the blanks: A(n) __hypothesis_____ is an educated guess about how variables are related.

(a)  

9.

Fill in the blanks: A(n) __scientific law__ is description of a rule of nature.

(a)  

10.

Fill in the blanks: A(n) __scientific theory__ is an explanation supported by experimental results.

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11.

Fill in the blanks: A _model (a)   is a representation of an idea, event, structure, or object that helps people to better understand it.

12.

Number the following steps in the order in which scientists study problems.

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13.

Which of the following is a base unit?

a)

Grams

b)

Kelvin

c)

Minutes

d)

Newton

14.

Which of the following is a base unit?

a)

Ampere

b)

Volt

c)

Newton

d)

Joule

15.

Which of the following is not an SI unit of measurement?

a)

Meter

b)

Second

c)

Kilogram

d)

Kilometer

16.

The SI base unit used to measure mass is the ___.

a)

gram

b)

meter

c)

kilogram

d)

milligram

17.

Which of the following is the derived quantity with its correct SI unit?

a)

Mass Kilogram

b)

Temperature Kelvin

c)

Current Ampere

d)

Force Newton

18.

Force is a product of mass and acceleration. Which combination of fundamental units can be used to express the force acting on an object?

a)

kg

b)

m/s

c)

kgm/s

d)

kgm/s

19.

Which of the following is the base unit for pressure?

a)

m/s

b)

m/s

c)

kg∙m/s

d)

kg/m/s

20.

The derived unit used to measure power is ___.

a)

kg.m/s

b)

kg.m/s

c)

kg.m/s

d)

kg/m.s

21.

If quantity X is measured in kg, quantity Y is measured in m/s, and quantity Z is measured in m, what is the unit for the calculated quantity: XY/Z?

a)

kg.m/s

b)

kg.m/s

c)

kg.m/s

d)

kg.m/s

22.

List six base quantities and their respective units in the table below.

4 lines
23.

Classify each of the following as a base or derived unit.

4 lines
24.

Classify the quantities as base or derived by putting a tick (√) and write their corresponding SI units.

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25.

The table below shows the physical quantities and their respective formulas. Write their units in terms of their fundamental base units.

4 lines
26.

Using units, validate if the equations below are dimensionally correct. Note that x is distance, v is speed, t is time and a is acceleration.

4 lines
27.

____ is the apparent shift of an object when it is viewed from different angles.

a)

Accuracy

b)

Double vision

c)

Measurement

d)

Parallax

28.

____ describes how well the results of a measurement agree with the real value.

a)

Precision

b)

Accuracy

c)

Error

d)

Measurement

29.

The degree of exactness of a measurement is called _____.

a)

Precision

b)

Accuracy

c)

Error

d)

Measurement

30.

A device with very small divisions on its scale can measure with ____.

a)

agreement

b)

precision

c)

scientific notation

d)

fundamental units

31.

Four students reported results from an experiment. Mass of Unknown Liquid Student A Student B Student C Student D 52.3 g 52.35 g 52.353 g 53 g Which student is more precise?

a)

Student A

b)

Student B

c)

Student C

32.

Which student is more precise?

a)

Student A

b)

Student B

c)

Student C

d)

Student D

33.

The length of the student desk is measured using a measuring tape as 1.20 m. how many significant figures is this measurement?

a)

1

b)

2

c)

3

d)

4

34.

The degree of possible error in a measurement is called its ____.

a)

fundamental unit

b)

mechanical quantity

c)

precision balance

d)

margin of uncertainty

35.

Which describes an independent variable?

a)

The factor that is changed or manipulated during an experiment

b)

The factor that depends on what is changed or manipulated during an experiment

c)

The line of best fit

d)

The result of an experiment

36.

Where is the dependent variable plotted on the graph?

a)

Horizontal axis

b)

Vertical axis

c)

At the origin

d)

The dotted line

37.

What type of relationship is represented in this graph?

a)

Linear

b)

Inverse

c)

Reverse

d)

Quadratic

38.

What can you determine from looking at this graph?

a)

As resistance decreases, current decreases

b)

As resistance increases, current decreases

c)

As resistance increases, current stays the same

d)

As current increases, resistance increases

39.

Fill in the blanks. A(n) ___ describes the relationship between two variables in which an increase in one variable results in the decreases of another variable.

4 lines
40.

On a graph, the ____ is the line drawn as close as possible to all of the data points.

4 lines
41.

The ___ is the factor that is changed or manipulated during an experiment.

4 lines
42.

The __ is the factor that depends on the independent variable.

4 lines
43.

A straight line on a graph shows that there is a(n) __ between the two variables.

4 lines
44.

A(n) __ exists when one variable depends on the square of another.

4 lines
45.

In a coordinate system the (a)   is the point at which both variables have the value zero.

46.

In this image, 7 cm represents the (a)   .

47.

the _____ is the point at which both variables have the value zero.

a)

distance

b)

magnitude

c)

origin

d)

vector

48.

In this image, 7 cm represents the _____.

a)

origin

b)

resultant

c)

scalar

d)

interval

49.

Final position minus the initial position is called _____.

a)

distance

b)

displacement

c)

magnitude

d)

time interval

50.

Which of the following quantities is a vector?

a)

Distance

b)

Speed

c)

Work

d)

Displacement

51.

All of the following are scalar quantities except _____.

a)

mass

b)

distance

c)

acceleration

d)

temperature

52.

Which of the following physical quantities is not a vector quantity?

a)

Time

b)

Force

c)

Velocity

d)

Acceleration

53.

The diagram below shows the position of an object changing with time. The displacement of the object if it moves from A to C and then back to B is ____.

a)

1 m

b)

2 m

c)

4 m

d)

6 m

54.

A boy moved from point A to B to C and finally back to A as shown below. What is his displacement?

a)

0 m

b)

3 m

c)

5 m

d)

12 m

55.

The distance travelled by the particle is __.

a)

1 m

b)

3 m

c)

5 m

d)

7 m

56.

The displacement of the particle is __.

a)

1 m

b)

3 m

c)

5 m

d)

7 m

57.

Fill in the blanks: a. A __vector__ is a quantity with both magnitude and direction.

(a)  

58.

Fill in the blanks: b. A vector that represents the sum of two or more vectors is a __resultant__.

(a)  

59.

Fill in the blanks: d. Another term given for the size of a quantity is the __magnitude__.

(a)  

60.

Fill in the blanks: e. The formula t% – t& represents __time interval__.

(a)  

61.

Fill in the blanks: f. A quantity that has only magnitude is __scalar__.

(a)  

62.

Fill in the blanks: g. A system that defines the zero point of the variable you are studying is the __coordinate system__.

4 lines
63.

Fill in the blanks: h. The zero point is also called the __origin__.

(a)  

64.

Fill in the blanks: i. The vector quantity that defines the distance and direction between two positions is __displacement__.

(a)  

65.

Fill in the blanks: j. A scalar quantity that is the length, or size, of the displacement vector is __distance__.

(a)  

66.

Classify the following quantities into scalar or vector quantities by putting a tick (√) in the table below.

4 lines
67.

A student on her way to school walks 4.0m east, 3.0m north and another 5.0m east, as shown in the diagram. a. Calculate the total distance she covers from her home to school.

4 lines
68.

Compared to the distance she walks, the magnitude of her displacement from home to school is __________ (Tick the correct answer).

4 lines
69.

What is the position of the object at 6.0 s?

4 lines
70.

How much time has passed when the object is at 6.0 m?

4 lines
71.

How far does the object travel for every second it is in motion?

4 lines
72.

If the object continues at this speed, when will the object reach 18.0 m?

4 lines
73.

Where will the object be after 300 s?

4 lines
74.

Which jogger has a higher speed? Explain why?

4 lines
75.

Will the blue jogger catch up to the red jogger during the motion shown in the graph? How can you tell?

4 lines
76.

How far apart were the two runners at t = 2.0 s?

4 lines
77.

_____ is the change in position divided by the time during which the change occurred.

a)

Average velocity

b)

Average speed

c)

Instantaneous velocity

d)

Instantaneous speed

78.

The figure below shows a position-time graph for an object in motion. Its velocity at 4s is called its ______ velocity.

a)

average

b)

variable

c)

constant

d)

instantaneous

79.

You drive a car for 3.0 h at 97 km/h, then for another 3 h at 72 km/h. What is your average velocity?

a)

85 m/s

b)

85 km/s

c)

85 km/h

d)

85 km/h

80.

What is the average velocity of an object that moves from 6.5 cm to 3.5 cm relative to the origin in 3.0 s?

a)

1.0 m/s

b)

2.0 m/s

c)

3.3 m/s

d)

9.0 m/s

81.

When is the average velocity of an object equal to the instantaneous velocity?

a)

when the velocity is constant

b)

only when the velocity is decreasing at a constant rate

c)

only when the velocity is increasing at a constant rate

d)

always

82.

The graph below represents the motion of a bicycle. What is the average speed of the bicycle?

a)

0.1 m/s

b)

0.6 m/s

c)

1.7 m/s

d)

10 m/s

83.

An object’s equation of motion is given by x = (12 m) + (5 m/s) t, where x is the final position and t is the time. Which statement is true for the object?

a)

Initial velocity could be 12 m/s

b)

Moves with a constant velocity of 5 m/s

c)

Moves with a constant velocity of 12 m/s

d)

Accelerates at 5 m/s^2

84.

Which of the following correctly compares the velocities represented by the graph below?

a)

v1 > v2 > v3

b)

v1 = v2 = v3

c)

v3 > v2 > v1

d)

v2 > v3 > v1

85.

Fill in the blanks. The speed and direction of an object at a particular instant is the __.

4 lines
86.

Fill in the blanks. Ratio of the change in position to the time interval during which the change occurred is the __.

4 lines
87.

Fill in the blanks. The absolute value of the slope on a position-time graph is (a)   .

88.

What is its average velocity?

4 lines
89.

What is the ship’s average speed?

4 lines
90.

Find ∆t for the change in position from x=5 m to x=15 m.

4 lines
91.

Find ∆x for the time interval from t=2.0 s to t=8.0 s.

4 lines
92.

What is the slope of this line?

4 lines
93.

What does the absolute value of the slope of this line represent?

4 lines
94.

What is the speed of this object in m/s?

4 lines
95.

If this object continues at the same speed, how long would it take this object to reach a position of x=150 m?

4 lines
96.

If this object continues at the same speed, how far will it have traveled when t=200 s?

4 lines
97.

What formula would you use to determine the position of this object if it had an initial position vector and then traveled at a fixed velocity for a certain amount of time?

4 lines
98.

How far will this object have traveled if it had an initial position of 220 m and traveled at a speed of 2.5 m/s for 48 s?

4 lines
99.

Where is the bike at 2.0 s?

4 lines
100.

At what time is the bike at the location x=26 m?

4 lines
101.

From the graph identify if the object is moving towards or away from the origin in the first 4s.

4 lines
102.

What is the object’s average velocity at 4 s?

4 lines
103.

What is the object’s average speed in the last 1s?

4 lines
104.

What is the y-intercept?

4 lines
105.

What is the object’s average speed in the last 1s?

4 lines
106.

What is the y-intercept?

4 lines
107.

Use your answers from part b and part d to find the position of the object after 10s.

4 lines
108.

In which of the time intervals below is the velocity of the particle negative? Tick the appropriate box(es).

a)

0 s – 2 s

b)

2 s – 4 s

c)

4 s– 5 s

109.

Find the instantaneous velocity at 4 s.

4 lines
110.

What is the total displacement of the particle?

4 lines
111.

Find the average velocity of the particle for the interval t = 0, t = 5.

4 lines
112.

What is the object’s displacement in the first 5 seconds?

4 lines
113.

Find the average velocity of the object during t=10.0s and t=15.0s?

4 lines
114.

What is the average speed of the object between t=10.0s and t=15.0s?

4 lines
115.

Write the equation of motion for the final position of the object during the first 5 seconds.

4 lines
116.

For each description, complete the table with the correct time interval.

4 lines
117.

As a car is driven south in a straight line with constant speed, the acceleration of the car must be ______.

a)

zero

b)

directed northward

c)

directed southward

d)

constant, but not zero

118.

A car, initially traveling at 15 m/s north, accelerates to 25 m/s north in 4.0 seconds. The magnitude of the average acceleration is ____.

a)

2.5 m/s²

b)

6.3 m/s²

c)

10 m/s²

d)

20 m/s²

119.

A car, initially traveling at 15 m/s north, accelerates at a rate of 2.5 m/s². What is its final velocity after 4.0 s?

a)

5.0 m/s

b)

6.0 m/s

c)

25 m/s

d)

38 m/s

120.

As a car is driven south in a straight line with decreasing speed, the acceleration of the car must be:

a)

zero

b)

directed northward

c)

directed southward

d)

constant, but not zero

121.

Which of the motion diagrams below show an object moving with constant velocity?

a)

A

b)

B

c)

C

d)

D

122.

The motion of a car is represented by the following particle model. Which of the following motion diagrams correctly shows the motion of the car?

a)

A

b)

B

c)

C

d)

D

123.

Identify which of the following can all be true about the motion of an accelerating object.

a)

Positive Positive Speeding up

b)

Positive Negative Speeding up

c)

Negative Negative Slowing down

d)

Negative Positive Speeding up

124.

The uniform acceleration has a_________.

a)

varying magnitude and direction

b)

constant magnitude and direction

c)

varying magnitude and a constant direction

d)

constant magnitude and a varying direction

125.

If an object’s velocity and acceleration have the same direction, then the object is _______.

a)

at rest

b)

speeding up

c)

slowing down

d)

moving at a constant velocity

126.

The graph below represents the motion of an object. What is the acceleration of the object?

a)

0.25 m/s²

b)

0.40 m/s²

c)

2.5 m/s²

d)

4.0 m/s²

127.

The graph below represents the relationship between velocity and time of travel for a toy car moving in a straight line. The shaded area under the line represents the car’s _______.

a)

speed

b)

position

c)

acceleration

d)

displacement

128.

The picture below shows the position of a car at different times. Which of the graphs below correctly represents the car’s position as a function of time?

a)

A

b)

B

c)

C

d)

D

129.

The motion of several objects is represented by a position-time graph below. Which object has an acceleration?

a)

A

b)

B

c)

C

d)

D

130.

The position-time graph for an object is represented by the graph below. Which of the following is/are true regarding the motion of the object?

a)

I. Negative velocity

b)

II. Slowing down

c)

III. Accelerating

131.

Which of the objects is/are moving with a constant velocity?

a)

A only

b)

A and E only

c)

B and C only

d)

A, B and C only

132.

Which object has a constant negative acceleration throughout its motion?

a)

B

b)

C

c)

D

d)

E

133.

Which of the statements below is true?

a)

Car D is accelerating

b)

Car C is slowing down

c)

Car B has a positive acceleration

d)

Ca

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