physical science exam

Question 1

Which of the following is the standard unit of measurement for Work and Energy?

Answer 1

joule

Question 2

A 3 kg ball is rolling 2 m/s. How much kinetic energy does it have?

Answer 2

6J

Question 3

Which of the following terms illustrates a push or pull on an object?

Answer 3

force

Question 4

An ambitious hiker walks 25km west and then 35km south in a day. Find the magnitude of the
hiker’s resultant displacement.

Answer 4

43km

Question 5

Sound waves contain certain components such as pitch, which is related to which of the following
wave components?

Answer 5

frequency

Question 6

Which term exemplifies the magnitude of the flow of electrons in an electric current?

Answer 6

voltage

Question 7

Which type of machine characterizes the image below:

Answer 7

simple

Question 8

A race car accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the
acceleration of the car and the distance traveled.

Answer 8

11.2

Question 9

Light can be broken down by frequency and wavelength using the electromagnetic spectrum. Which
part of this spectrum can humans see?

Answer 9

visible light

Question 10

Normal body temperature is 98.6°F. What is this value on the Celsius scale?

Answer 10

37

Question 11

Which of the following is the SI unit for Power?

Answer 11

watt

Question 12

During an experiment, which of the following is the term used to describe the variable that does not
receive or contain the variable being tested.

Answer 12

control

Question 13

Absolute Zero describes an event in which there is none of which of the following terms?

Answer 13

energy

Question 14

Which type of device will produce an upright and enlarged image if the object’s distance is less than
the focal length?

Answer 14

convex lens

Question 15

Which of the following types of force allows cars to come to a rolling stop when the brake applied or
fire to be produced when someone strikes a match?

Answer 15

friction

Question 16

The musical note A above middle C has a frequency of 440 Hz. If the speed of sound is known to be
350 m/s, what is the wavelength of this note?

Answer 16

0.8m

Question 17

What is the acceleration of a 7 kg object being pulled by a 56 N force?

Answer 17

8

Question 18

A concave mirror has a focal length of 6.0 cm. An object with a height of 0.60 cm is placed 10.0 cm in
front of the mirror. Calculate the image distance.

Answer 18

15

Question 19

Also called the law of inertia, which of newton’s three laws can explain the purpose of the airbag in
the image below?

Answer 19

first law

Question 20

Li Ping Phar, the esteemed Chinese ski jumper, has a mass of 59.6 kg. He is moving with a speed of
23.4 m/s at a height of 44.6 meters above the ground. Determine the total mechanical energy of Li Ping Phar.

Answer 20

4.24x10^4J

Question 21

A high pitch will relate to which of the following statements?

Answer 21

high frequency

Question 22

The temperature of a star on a Kelvin scale is 6200 K. This is about 4500 degrees less than
temperature on the Fahrenheit scale. Find the Fahrenheit temperature.

Answer 22

10701

Question 23

A nine volt battery supplies power to a cordless curling iron with a resistance of 18 ohms. How much
current is flowing through the curling iron?

Answer 23

0.5A

Question 24

Which of the following is acceleration due to gravity?

Answer 24

9.8

Question 25

Ben elevates his 784 N body up the 2.0-meter stairwell in 1.8 seconds.? How much power was used by Ben?

Answer 25

871

Question 26

Which of the following terms represents the opposition of electron movement in a circuit?

Answer 26

resistance

Question 27

Which of the following is the term used to describe sound that bounces off of objects?

Answer 27

echo

Question 28

Which type of energy is related to temperature or more importantly the vibration of atoms?

Answer 28

thermal energy

Question 29

The below image most closely illustrates which of the following terms in physics science?

Answer 29

work

Question 30

Calculate the momentum of a 11.35 kg wagon rolling down a hill at 12m/s.

Answer 30

136.2

Question 31

A 4.00-cm tall light bulb is placed a distance of 45.7 cm from a double convex lens having a focal length of 15.2 cm. Determine the image distance and the image size.

Answer 31

d i = 22.8 cm, h i = -1.99 cm

Question 32

A 4 kg rock is sitting on a 3 m ledge. How much potential energy does it have?

Answer 32

118

Question 33

Which of the following is the standard unit of measurement for Force?

Answer 33

newton

Question 34

When you look at a distant star or planet, you are looking back in time. How far back in time are you looking when you observe Pluto through the telescope from a distance of 5.91 x 10 12 m? (C=d/t)

Answer 34

1.97 x 10^ 4

Question 35

Convert 56 months into years.

Answer 35

12 years

Question 36

Which of the following types of waves uses labels such as FM and AM?

Answer 36

radio waves

Question 37

Describe the motion occurring between points B-C and D-E.

Answer 37

no movement

Question 38

Describe the motion occurring between points A-B and C-D.

Answer 38

constant acceleration

Question 39

Calculate the speed of this object between 0 and 60 seconds.

Answer 39

3,33