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Physical Science EOC Part 2
Test Description: EOC Review
Instructions: Answer all questions to get your test result.
1) An object has a mass of 12.8 kg and a velocity of 8.4 m s. What is the kinetic energy of the object if KE is 1 half the mass times velocity squared?
A
451.6 J
B
107.5 J
C
903.2 J
D
53.8 J
2) A car was sitting in sunlight all day long. The heat that is now contained in the car was transferred to the car primarily by which of the following processes?
A
convection
B
radiation
C
electrical energy transfer
D
conduction
3) A person places a metal spoon that is at room temperature into a bowl of hot soup. How will the thermal energies of the spoon and the soup be affected?
A
The spoon will increase in thermal energy and the soup will decrease in thermal energy.
B
Both the spoon and the soup will increase in thermal energy
C
The spoon will decrease in thermal energy and the soup will increase in thermal energy
D
Both the spoon and the soup will decrease in thermal energy
4) If the north poles of two bar magnets are brought together, which is true?
A
No force will be experienced between the magnets
B
One north pole will become south do to the interaction
C
The two north poles will attract each other.
D
The two north poles will repel each other.
5) How much potential energy does a 55-kg person gain when she walks to the top of a hill 20 m tall? (PE= mass x acceleration of gravity x height)
A
10,780J
B
539J
C
75J
D
1,100J
6) In the periodic table, the rows are called
A
families
B
groups
C
classes
D
periods
7) A toaster is plugged into a wall outlet that has a voltage of 110 volts. If the toaster's resistance is 10 ohms, what current runs through the toaster? I= V divided by R (you need to know what these symbols represent)
A
10
B
100
C
1100
D
11
8) Which, if either, of an object's potential and kinetic energies will directly depend on the object's position relative to the ground?
A
Neither potential energy nor kinetic energy
B
potential energy only
C
kinetic energy only
D
Potential energy as well as kinetic energy
9) A series circuit has a current of 3 A. The circuit contains a 12 ohm resistor. What is the voltage of the current (use I=V/R
A
15V
B
4V
C
0.25V
D
36V
10) A car is traveling at a constant speed of 12 m/s. When the driver accelerates, the car reaches a speed of 26 m/s in 6 s. What is the average acceleration of the car? (acceleration = change in velocity/ change in time)
A
2.3 m/s/s
B
2 m/s/s
C
4.3 m/s/s
D
84 m/s/s
11) A 150-kg student kicks a 1.5-kg with a force of 450N. What force does the ball apply to the student?
A
675N
B
450N
C
900N
D
400N
12) A metal spoon is used to stir a pot of boiling water. The person holding the metal spoon feels the spoon get hot. Which best describes the transfer of heat in the spoon?
A
electrical
B
conduction
C
radiation
D
convection
13) What happens to the kinetic energy and gravitational potential energy of a ball during free fall?
A
Gravitational potential energy increases and kinetic energy decreases
B
Gravitational potential energy and kinetic energy both increase
C
Gravitational potential energy and kinetic energy both decrease
D
Gravitational potential energy decreases and kinetic energy increases
14) Which element is an alkaline earth metal?
A
Zn
B
Be
C
Li
D
Na
15) A ball with a mass of 5kg is dropped from a resting position 10m above the ground. What is the potential energy of the ball just before it is dropped? (PE= mass x acceleration of gravity x height)
A
49 J
B
98 J
C
490 J
D
0 J
16) Which of the following are transferred or shared when two atoms react chemically?
A
neutrons
B
electrons
C
protons
D
photons
17) Which best explains why water dissolves most salts?
A
Water is nonpolar and salts form ions in solution
B
Water is the same density as salts
C
Water is polar and salts form ions in solution
D
Water has a different density than most salts
18) An aluminum bar was found to have a mass of 27 g. Using water displacement, the volume was measured to be 10 mL. What is the density of the aluminum? (density = mass/volume)
A
270 g/ml
B
2.7 g
C
270 g
D
2.7 g/ml
19) Which accounts for most of the mass of an atom?
A
electrons and neutrons
B
protons
C
electrons
D
neutrons and protons
20) A sound wave has a frequency of 247 Hz and a wavelength of 1.4 m. What is the speed of the sound wave in air? Use the following equation v= f x ≀
A
345.8 m/s
B
176.4 m/s
C
245.6 m/s
D
248.4 m/s
*select an answer for all questions
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