Physical Science EOC Part 2 Question Preview (ID: 37618)
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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) 0.25V
b) 36V
c) 15V
d) 4V
In the periodic table, the rows are called
a) periods
b) groups
c) classes
d) families
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) 11
c) 100
d) 1100
Which, if either, of an object's potential and kinetic energies will directly depend on the object's position relative to the ground?
a) potential energy only
b) kinetic energy only
c) Potential energy as well as kinetic energy
d) Neither potential energy nor kinetic energy
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) 75J
b) 539J
c) 1,100J
d) 10,780J
If the north poles of two bar magnets are brought together, which is true?
a) The two north poles will repel each other.
b) The two north poles will attract each other.
c) No force will be experienced between the magnets
d) One north pole will become south do to the interaction
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
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) conduction
b) convection
c) radiation
d) electrical energy transfer
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) 53.8 J
c) 107.5 J
d) 903.2 J
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 m/s/s
b) 4.3 m/s/s
c) 84 m/s/s
d) 2.3 m/s/s
A 150-kg student kicks a 1.5-kg with a force of 450N. What force does the ball apply to the student?
a) 450N
b) 400N
c) 900N
d) 675N
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) radiation
b) electrical
c) conduction
d) convection
What happens to the kinetic energy and gravitational potential energy of a ball during free fall?
a) Gravitational potential energy and kinetic energy both increase
b) Gravitational potential energy and kinetic energy both decrease
c) Gravitational potential energy decreases and kinetic energy increases
d) Gravitational potential energy increases and kinetic energy decreases
Which element is an alkaline earth metal?
a) Be
b) Na
c) Li
d) Zn
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) 0 J
b) 49 J
c) 98 J
d) 490 J
Which of the following are transferred or shared when two atoms react chemically?
a) protons
b) neutrons
c) electrons
d) photons
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
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) 270 g
c) 2.7 g/ml
d) 2.7 g
Which accounts for most of the mass of an atom?
a) electrons
b) protons
c) neutrons and protons
d) electrons and neutrons
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
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