WorksheetsPhysical Science Semester 1 Final Review
Total questions: 35
Worksheet time: 20mins
Which object has the greatest kinetic energy?
A car driving down a hill.
A person running down a hill.
A ball rolling down a hill.
6. Where would this tossed baseball have the least amount of kinetic energy?
Point W
Point X
Point Y
Point Z
Which of the following conversions is illustrated with a solar powered car?
mechanical to chemical
light to mechanical
chemical to mechanical
light to electrical
Which of the following shows the best examples of the energy conversion in a battery powered flashlight?
Chemical >>> Electrical >>> Radiant
Electrical >>> Mechanical >>> Chemical
Mechanical >>> Radiant >>> Electrical
Radiant >>> Electrical >>> Chemical
8. A television converts electricity into
sound
light
heat
chemicals
Lilly's cat has a mass of 5 kg. He is running North at a speed of 3 m/s. What is the kinetic energy of the cat as he runs?
KE= 1/2mv2
8.5 J
7.5 J
45 J
22.5 J
Calculate the potential energy of a car with a 2,500 kg mass that is on a hill 100 meters above sea level.
PE=mgh
250,000 J
2,451,663 J
2,450,000 J
248 J
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?
-80,371.2 J
80,371.2 J
44,938.6 J
112,575.9 K
Which will heat up faster?
copper
granite
Iron
basalt
Specific heat of water is 4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?
Water
Wood
Both wood and water
Which wave in the diagram has the greatest frequency?
1
2
3
4
Waves that require a medium are called
mechanical waves
transverse waves
light waves
gamma rays
When the frequency of a wave increases, what happens to the wavelength?
The wavelength is not directly affected by the frequency of a wave.
The wavelength increases.
The wavelength decreases.
More specific information is needed to form a conclusion about the wavelength.
Which letter(s) represent the trough of the wave?
A
C
D
F
Which of the following can sound travel through?
solid
liquid
gas
a vacuum
A wave that can travel through matter and empty space (vacuum) is a:
electromagnetic wave
longitudinal wave
transverse wave
1. Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
Gamma Rays
Visible Light
Radio Waves
Infrared rays
How are electromagnetic waves different from other waves?
They have very short wavelengths
They can travel through a vacuum
They transmit energy instead of matter
They can change direction by reflection
A student placed a pencil in a cup of water. The pencil appears broken because light
always travels in a straight line.
bends when it passes through water.
makes the water in the glass evaporate.
reflects the pencil on the water's surface.
This image depicts which of the following wave behaviors?
Reflection
Diffraction
Refraction
Resonance
Use the diagram to answer this question. Who is experiencing a higher pitched sound?
Observer A
Observer B
There's no difference
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
Add more coils of wire to the nail.
Use a smaller battery.
Reverse the poles of the magnet.
Remove all the coils and the nail.
What will happen if one light bulb is removed from this circuit?
The other bulbs will go out.
The other bulbs will stay on
The other bulbs will get dimmer.
The battery will become stronger.
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.
parallel
series
open
closed
A light bulb with 200 ohms of resistance is connected across a 100-V power supply. What current will flow through this bulb?
0.90 A
0.36 A
0.60 A
0.5 A
Which of the following correctly states relationship between voltage, resistance, and current in a circuit?
Current is directly related to both voltage and resistance.
Current is inversely related to both voltage and resistance.
Current is directly related to voltage but inversely related to resistance.
Current is directly related to voltage but is not affected by resistance.
Generators are devices that convert _____ energy into _____ energy.
chemical; mechanical
mechanical; electrical
electrical; mechanical
potential; kinetic
Check the correct examples of velocity
6 km/h
55 km/h westward
70 m/s left
45 feet up
60 mph
Caiden is running down the field at first going 15m/s then after 20 sec is going 30m/s. What is his acceleration?
0.75m/s2 south
0.75 mph
22 m/s
2 mph
What does this graph represent?
constant speed
deacceleration
acceleration
not moving
It took 500 Newtons of force to push a car four meters. How much work was done?
W= f x d
2000 J
125 J
0.008 J
500 J
Calculate the Net Force.
60 N Left
40 N Right
0 N
60 N Right
How much force is needed to accelerate a 25kg bowling ball at 2m/s2.
50 N
5 N
12.5 N
100 N
Which is an example of someone using a simple machine to do work?
a boy runs across a football field
a mother pushes a stroller up a ramp into a building
a banker counts money
a girl eats a sandwich
If you needed to use a lever to move a heavy object, where is the best place to place the load?
next to where the force is applied
at the opposite end of the fulcrum
directly under the fulcrum
near the fulcrum.
