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physical science exam 2018 > physical science exam > Flashcards

physical science exam Flashcards

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1
Q

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

A

joule

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2
Q

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

A

6J

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3
Q

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

A

force

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4
Q

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

A

43km

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5
Q

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

A

frequency

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6
Q

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

A

voltage

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7
Q

Which type of machine characterizes the image below:

A

simple

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8
Q

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.

A

11.2

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9
Q

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

A

visible light

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10
Q

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

A

37

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11
Q

Which of the following is the SI unit for Power?

A

watt

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12
Q

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.

A

control

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13
Q

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

A

energy

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14
Q

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

A

convex lens

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15
Q

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?

A

friction

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16
Q

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?

A

0.8m

17
Q

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

A

8

18
Q

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.

A

15

19
Q

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

A

first law

20
Q

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.

A

4.24x10^4J

21
Q

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

A

high frequency

22
Q

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.

A

10701

23
Q

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?

A

0.5A

24
Q

Which of the following is acceleration due to gravity?

A

9.8

25
Q

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

A

871

26
Q

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

A

resistance

27
Q

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

A

echo

28
Q

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

A

thermal energy

29
Q

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

A

work

30
Q

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

A

136.2

31
Q

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.

A

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

32
Q

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

A

118

33
Q

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

A

newton

34
Q

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)

A

1.97 x 10^ 4

35
Q

Convert 56 months into years.

A

12 years

36
Q

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

A

radio waves

37
Q

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

A

no movement

38
Q

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

A

constant acceleration

39
Q

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

A

3,33

physical science exam 2018 (1 decks)

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