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PhySci Semester 1 Exam Study Guide

Total questions: 75

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

The SI units of science are based on the __________ system

a)

Emperical

b)

Standard

c)

Metric

d)

Science

2.
What is the correct SI unit for mass?
a)
Kilograms
b)
newtons
c)
pounds
d)
grams
3.
The SI unit for temperature is __?__.
a)
degree fahrenheit  (° F)
b)
degree celsius  (° C)
c)
kelvin  (K)
d)
degree centigrade  (°C)
4.

The SI unit for time is the __?__.

a)

hours (h)

b)

liter (L)

c)

gram (g)

d)

second (s)

5.

What SI unit is used to measure length?

a)

meters

b)

liters

c)

centimeters

d)

kilograms

6.

The SI unit for mass is _________.

a)

Pounds

b)

Inches

c)

Kilograms

d)

Ounces

7.

A system of units of measure widely accepted by the scientific community (SI for short)

a)

International System of Units

b)

World Wide Weight

c)

Science Instruments

d)

Use These Measures

8.

Speed and velocity are measured in the same SI unit

a)

True

b)

False

9.

Average speed is measured in

a)

meters per second (m/s)

b)

miles per day (m/d)

c)

kilograms per second (k/s)

d)

newtons per meters (n/m)

10.

Acceleration is measured in

a)

m/d3

b)

g/n

c)

m/s2

d)

k/j2

11.

Newton meters is an other term for

a)

Watts

b)

Joules

c)

Kilograms

d)

Seconds

12.

All of these are measured in joules EXCEPT

a)

Work

b)

Potential Energy

c)

Kinetic Energy

d)

Weight

13.

The SI unit for power is

a)

meters

b)

mass

c)

kilograms

d)

watts

14.

Potential and kinetic energy are both measured in

a)

Watts

b)

Kelvins

c)

Joules

d)

Newtons

15.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
16.
Convert 300 meters to centimeters:
a)
3000 cm
b)
0.3 cm
c)
30,000 cm
d)
3 cn
17.
15.6 L = ___________ mL
a)
15,600
b)
156,000
c)
1,560,000
d)
15,600,000
18.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
19.

Newtons could be used to measure __________ and __________.

a)

mass, speed

b)

momentum, work

c)

force, weight

d)

direction, power

20.

In a laboratory, the following should NOT be worn

a)

gloves

b)

open toed shoes

c)

apron

d)

goggles

21.

If you do not understand a direction or part of a lab procedure, you should

a)

figure it out on your own as you go

b)

ask your teacher

c)

guess

d)

write a pros and cons list

22.
You have been injured in the laboratory (cut, burn, etc.). First you should
a)
apply first aid yourself
b)
tell the science instructor at once
c)
see a doctor after school
d)
visit the school nurse after class
23.

A student can pick up any broken glass as long as they throw it in the trash.

a)

True

b)

False

24.
To put out a fire on a person's hair or clothes, use:
a)
the fire blanket.
b)
the wind from running.
c)
the fire extinguisher.
d)
any wet chemical you can find.
25.
If you wear contact lenses in the school laboratory
a)
take them out before starting the lab
b)
you do not have to wear protective goggles
c)
 advise your science instructor that you wear contact lenses
d)
 keep the information to yourself
26.
Long hair in the laboratory must be 
a)
A. cut short. 
b)
B. held away from the experiment with one hand.
c)
 C. always neatly groomed.
d)
D. tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.
27.

Displacement involves both distance and direction.

a)

True

b)

False

28.

Motion occurs when there is a change in speed.

a)

True

b)

False

29.

If you were trying to get out of the way of a storm, you would need to know the speed it was going.

a)

True

b)

False

30.

The total distance traveled divided by the constant speed is the average speed.

a)

True

b)

False

31.

The relationship s = d/t can be used to calculate speed, distance, or time.

a)

True

b)

False

32.

Acceleration occurs when velocity changes.

a)

True

b)

False

33.

When you push on a sled and it begins to go downhill, you cause negative acceleration.

a)

True

b)

False

34.

If you ride your bicycle down a straight road for 500 meters then turn around and ride back, your distance is ______ than your displacement.

a)

greater than

b)

less than

c)

equal to

d)

can't determine

35.

Motion is a change in________.

a)

speed

b)

velocity

c)

time

d)

position

36.

3 m/s north is an example of

a)

speed

b)

velocity

c)

position

d)

acceleration

37.

A merry-go-round horse moves at a constant speed but a changing

a)

velocity

b)

balanced force

c)

inertia

d)

unbalanced force

38.

Acceleration is the rate of change of

a)

position

b)

time

c)

velocity

d)

force

39.

A horizontal line on the distance - time graph shows

a)

constant speed

b)

increasing speed

c)

decreasing speed

d)

stopped

40.

______________ is a measure of how far an object has moved.

a)

displacement

b)

motion

c)

distance

d)

vector

41.

The speed and direction with which an object moves is its

a)

distance

b)

displacement

c)

acceleration

d)

velocity

42.

The distance from the starting point an object travels is its

a)

displacement

b)

distance

c)

travel time

d)

position

43.

Acceleration involves

a)

speeding up

b)

slowing down

c)

changing direction

d)

all of the above

44.

An object changing its speed from from 10 m/s to 3 m/s experiences

a)

positive velocity

b)

negative velocity

c)

positive acceleration

d)

negative acceleration

45.

As a car changes lanes on the interstate, it experiences

a)

velocity

b)

displacement

c)

acceleration

d)

air resistance

46.

When calculating acceleration, you will need to determine the  ΔV\Delta V  or

a)

the change in velocity

b)

change in direction 

c)

change in volume

d)

change in time

47.

A truck travel to and from a stone quarry that is located 2.5 km to the east.

What is the distance?

(a)  

48.

A girl walks her dog to the park, which is 1.5 km from her house, and back home again.

What is her displacement?

(a)  

49.

A cross country runner runs 10 km in 40 min. What is her average speed?

(a)  

50.

What is the acceleration of a car that goes from 32 m/s to 96 m/s in 8.0 s?

(a)  

51.

At which point is the potential energy the highest?

a)

W

b)

X

c)

Y

d)

Z

52.

Gravitational potential energy depends on the _____ and ____ of the object.

a)

mass and velocity

b)

friction and velocity

c)

mass and height

d)

height and velocity

53.

Gravitational potential energy depends on the _____ and ____ of the object.

a)

mass and velocity

b)

friction and velocity

c)

mass and height

d)

height and velocity

54.

Two factors that affect kinetic energy are___________ and _______.

a)

time and energy

b)

mass and power

c)

time and velocity

d)

velocity and mass

55.

What kind of energy is in a battery?

a)

electrical

b)

chemical potential

c)

kinetic

d)

mechanical potential

56.

As a pendulum swings from its highest to lowest position, what happens to the kinetic and potential energy?

a)

Both kinetic and potential energy decrease.

b)

The kinetic energy decreases and the potential energy increases.

c)

The kinetic energy increases and the potential energy decreases.

d)

Both kinetic and potential energy increase.

57.

How much kinetic energy does a running back have if his mass is 80 kg and he is running at a speed of 8 m/s?

a)

320 J

b)

2560 J

c)

5120 J

d)

640 J

58.

There is a clock at the top of a tower that is 45 m high. The clock has a mass of 20 kg. Calculate the clock's gravitational potential energy.

a)

8100 J

b)

9000 J

c)

900 J

d)

8820 J

59.

What is the value we use for gravity on Earth?

a)

9.8 m/s

b)

9.8 m/s/s

c)

10 m/s

d)

98 m/s2

60.

Which of these is an example of a change of kinetic energy into potential energy?

a)

a person parachutes out of a plane

b)

a person skiing down a hill

c)

a person racing to the top of a hill

d)

a car going around a race track

61.
Mechanical Energy is
a)
KE-PE
b)
PE - KE
c)
The sum of PE & KE
62.
Potential Energy is:
a)
The energy of motion
b)
always conserved
c)
The energy due to position
63.
Kinetic Energy is:
a)
Energy of motion
b)
always conserved
c)
Energy due to position
64.
This form of energy refers to the total amount of kinetic energy a substance has because of the motion of its atoms and molecules. 
a)
sound energy
b)
light energy
c)
potential energy
d)
thermal energy
65.
The flow of electrons indicates the presence form of energy.
a)
sound
b)
electrical
c)
thermal
d)
mechanical
66.
The flow of electrons indicates the presence form of energy.
a)
sound
b)
electrical
c)
thermal
d)
mechanical
67.
Photosynthesis in plants depends on this form of energy.
a)
sound
b)
mechanical
c)
light
d)
electrical
68.

Energy is the ability to do work or cause changes.

a)

True

b)

False

69.

______ energy is a type of potential energy that is stored in links between molecules of food and fuel.

a)

Mechanical

b)

Light

c)

Chemical

d)

Sound

70.

_____ is the flow of thermal energy from one substance to another.

a)

Heat

b)

Light

c)

Sound

d)

Movement

71.

Most of the energy we use originally came from:

a)

The sun

b)

The air

c)

The soil

d)

The oceans

72.

What type of heat transfer is happening at "A"

a)

conduction

b)

convection

c)

radiation

73.

What type of heat transfer is happening at "B"?

a)

conduction

b)

convection

c)

radiation

74.

What type of heat transfer is happening at "C"?

a)

conduction

b)

convection

c)

radiation

75.

Heat will always transfer from the ___________ object to the ________ object.

a)

The hottest object to the coolest object.

b)

The coolest object to the hottest object.

c)

The solid object to the liquid object.

d)

The liquid object to the solid object.

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