Worksheetsphys sem final
Total questions: 65
Worksheet time: 1hrs 19mins
What SI Unit is used for Length?
Gram
Foot
Meter
Liter
What SI Unit is used for Volume
Ounce
Liter
Cup
Gram
How many meters are in 1 kilometer? (Challenge Question)
1
10
100
1000
Which SI unit is used to measure force?
N
K
Hz
Pa
Acceleration is measured in
m/d3
g/n
m/s2
k/j2
Potential and kinetic energy are both measured in
Watts
Kelvins
Joules
Newtons
Which two measurements do you need to determine the speed of an object?
Position and Reference point
Distance and Reference point
Distance and Time
Distance and Velocity
Speed in a specific direction is called
velocity
motion
speed
position
To calculate speed:
Speed = time + distance
Speed = time X distance
Speed = distance X distance
Speed = distance ➗ time
A rocket travels 500 meters in 5 seconds. What was the speed of the rocket?
300 m/s
200 m/s
100 m/s
50 m/s
A roller coaster accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?
24 m/s2
18 m/s2
16 m/s2
16 m/s
Which type of force(s) will cause a change in an object's motion?
A zero net force
Balanced forces
Unbalanced forces
Determine the accelerations that result when a 12-N net force is applied to a 3-kg object.
3 ft/s
4 ft/s
26 m/s
4 m/s
Give the net force on the object.
6 N right
9 N right
3 N right
2 N right
Thor, dog of thunder, pulls a sled with a force of 40 N and the sled accelerates at 2 m/s2. Calculate the mass of the sled.
2 kg
4 kg
20 kg
82 kg
The total mechanical energy of an ideal, closed system
is constant
decreases over time
is equal to the sum of KE and PE
is constant AND equal to the sum of KE and PE
What is potential energy?
The stored energy of an object due to its position or condition.
The energy that an object has due to its motion.
The energy an object has due to its speed.
The energy an object has due to its volume.
What is kinetic energy?
The stored energy of an object due to its position or condition.
The energy that an object has due to its motion.
The energy an object has due to its speed.
The energy an object has due to its volume.
What does the law of conservation of energy tell us?
Energy is created and destroyed all of the time.
Stars generate most of the energy on the earth.
Energy can not be created or destroyed.
Dark matter absorbs most of the energy in the universe.
When does an object have no kinetic energy?
When it is at rest
When it is moving very slowly
When the only force acting on it is gravity
When it has no electrical charge
Which object has the most potential energy?
A ball resting on the ground
A ball thrown at 100 miles per hour
A ball on top of the refrigerator
A ball resting on the edge of cliff
When does a yo-yo have the most potential energy?
when it is at its highest point
when it is at its lowest point
when it is moving between its highest and lowest point
when it is moving at its top speed
When is potential energy transformed into kinetic energy?
When an object at rest is lifted to a higher elevation.
When an object at rest remains at rest.
When an object at rest is put into motion.
When an object in motion is stopped and put at rest.
ability to do work or cause change
displacement
kinetic energy
energy
potential energy
The sum of potential energy and kinetic energy equals the
potential energy
transformation
kinetic energy
mechanical energy
Select the correct order of waves on the EMS from low to high energy
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
How are Electromagnetic waves different from Mechanical waves?
EM waves have very short wavelengths
EM waves transmit energy instead of matter
EM waves can travel through the vacuum of space (without particles)
EM waves can change direction by reflection
Which of the following electromagnetic waves has the lowest frequency?
gamma ray
infrared wave
visible light wave
microwave
All electromagnetic waves are...
transverse waves and have the same frequency
transverse waves and have the same speed
mechanical waves and have the same wavelength
longitudinal waves and have the same energy
A type of wave where particles vibrate parallel to the direction of wave motion.
The position where a wave is at rest, with no net transfer of energy.
equilibrium
A wave has a frequency of 4 hz and a wave length of 3 m. What is the wave speed (velocity)?
25 m/s
1 m/s
7 m/s
12 m/s
V=fλ
If the velocity of the wave is 10 m/s and the frequency is 5 Hz, then what is the wavelength?
2 m
50 m
5 m
15 m
As the frequency of a wave increases, its wavelength
gets larger
gets smaller
remains the same
goes to zero
Which part of the electromagnetic spectrum has high enough energy to cause sunburn?
infrared light
visible light
ultraviolet light
microwaves
The type of wave with the shortest wavelength and highest frequency. This type of wave is extremely harmful.
radio
infrared
gamma
x ray
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
Gamma Rays
Radio Waves
Visible Light
Infrared rays
Which of the following electromagnetic waves is given off as heat?
Radio Waves
Infrared Rays
Visible Light
Gamma Rays
