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Worksheets8 SLO Post-Test for Science Review 24-25
Total questions: 50
Worksheet time: 33mins
If the frequency of a wave is halved, what effect would this have on the wave's properties?
A. The wavelength of the wave would increase.
B. The amplitude of the wave would increase.
C. The wavelength of the wave would decrease.
D. The amplitude of the wave would decrease.
A car is moving east at 15 m/s. What type of force would cause the car to accelerate in the same direction it is moving?
an unbalanced force coming from the west
an unbalanced force coming from the north
a balanced force coming from the east
a balanced force coming from the south
Emma was playing with a sunflower seed and a paper towel. She noticed that when she threw the sunflower seed at the paper towel, it bounced off. Which of the following best explains why the sunflower seed bounced off the paper towel?
A. When the sunflower seed hit the paper towel, the paper towel absorbed the force of the seed but did not apply a reaction force.
B. When the sunflower seed hit the paper towel, the paper towel applied a smaller force in the opposite direction on the seed.
C. When the sunflower seed hit the paper towel, the paper towel applied an equal but opposite force on the seed.
D. When the sunflower seed hit the paper towel, the paper towel applied a greater force in the opposite direction on the seed.
What is the primary force that governs the orbits of planets and other celestial bodies in our Solar System?
The magnetic fields of the planets.
The gravitational pull of the Sun.
The light pressure from the Sun.
The centrifugal force from the galaxy's rotation.
What do light years measure?
energy
distance
speed
time
James is sliding along an infinite, frictionless plane. Suppose there are only two forces acting on James: gravity and the normal force from the plane. Ignore air resistance. Describe James's motion.
The normal force will accelerate James.
James will eventually slow down and stop.
James will move at the same speed forever.
Gravity will accelerate James downward.
Four soccer players had a friendly kick-off to see who could kick the ball with the most force. Each player kicked the same soccer ball once, and the table below lists the force applied by each player. Based on the table, the soccer ball moved the fastest when which of the players kicked it?
Tyler
Thomas
Jacob
Jackson
A spacecraft is descending towards an airless planet. As it approaches, the planet's gravity pulls it downward. The spacecraft uses its thrusters to slow down. However, due to a design flaw, the gravitational force exceeds the maximum thrust of the spacecraft's engines. Assuming the gravitational force remains constant, describe the spacecraft's vertical motion as it nears the planet's surface. HINT: The gravitational force (downward) is stronger than the thrust force (upward).
The spacecraft descends with increasing velocity.
The spacecraft descends at a steady velocity.
The spacecraft's thrusters halt its descent.
The spacecraft descends with decreasing velocity.
Michael and Mia are discussing how different types of waves travel. Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?
Electromagnetic waves require a medium to travel through, whereas mechanical waves can travel through empty space.
Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.
Electromagnetic waves transfer energy, whereas mechanical waves only transfer matter.
Mechanical waves transfer energy, whereas electromagnetic waves only transfer matter.
Charlotte uses a pan balance to measure the mass of the metal objects. Since the pointer is at zero, what do you know about the forces acting on the two pans of the balance?
They are unequal.
They are more than 100 g.
They are balanced.
The weights are less than the sand.
Based on this information, how are the planets MOST different?
diameter
mass
density
surface temperature
The seasons change because the (a) changes as the Earth revolves around the Sun.
distance between the Earth and the Sun
length of time the Earth spends in the Sun each day
angle at which the Earth's axis is tilted
part of the Earth that is angled toward the Sun
Look closely at the image. It is not to scale. The diagram shows a (a) moon. During this time, the Earth would be experiencing (b) tides.
neap
Which of the following images is a picture of a galaxy?
A.
B.
C.
D.
The image below shows a (a) , which is an icy body that orbits the Sun in a highly elliptical path.
meteor
asteroid
planet
Waves that move the particles of the medium parallel to the direction that the waves are traveling are called .
transverse waves
electromagnetic waves
combination waves
The diagram below shows a sound wave produced by a tuning fork. The region where the medium of the wave is moving apart is the of the wave.
crest
medium
wavelength
If all the waves travel at the same speed, the Bottom Wave has the greater _____
frequency
transmission
refraction
wavelength
The top Wave has the greater _____
frequency
transmission
refraction
wavelength
Jackson is working on a science project involving an electromagnet. Which change would decrease the strength of the electromagnet?
using an iron nail
using an additional battery
using more wire coils around the nail
using fewer wire coils around the nail
Static electricity happens when electrons pass from one object to another, such as from Kailee's hair to a comb as she combs her hair. If she then holds the comb near her hair, strands of hair appear to move forward and "stick to the comb." The hair and the comb
A. attract each other because they have the same charges.
B. attract each other because they have opposite charges.
C. repel each other because they have the same charges.
D. repel each other because they have opposite charges.
The diagram below shows that the magnetic field of Earth is similar to that of a bar magnet. At which location is Earth’s magnetic field the strongest?
poles
equator
north America
Africa
Elijah was playing with a ball attached to the end of a string and spun it in a circle as shown in Figure 1 below. The ball moved in a counter-clockwise direction when seen from above as shown in Figure 2. After several spins, Elijah released the string when the ball was at point R. Which diagram shows the direction that the ball would fly the instant the string was released?
A
B
C
D
Abigail and Samuel are studying gravity by observing objects that have the same mass. Which two objects have the greatest gravitational force acting between them?
A. [Image of two 100 kg blocks 1.0 m apart]
B. [Image of two 100 kg blocks 2.0 m apart]
C. [Image of two 100 kg spheres 2.0 m apart]
D. [Image of two 100 kg spheres 3.0 m apart]
Which type of force requires contact between two objects for one to push or pull the other?
frictional forces slowing down a rolling soccer ball
the magnetic force pulling paper clips to a powerful electromagnet
the magnetic force pushing two magnets apart
the force of gravity acting on raindrops that fall to Earth
Aleah pushes a book across a classroom table. Which of the following statements best explains the difference between the amount of force needed to start the book moving and the amount of force needed to keep it moving
Less force is needed to start the book moving, because there is less friction than when it is already moving.
Less force is needed to start the book moving, because there is less potential energy in the table than in the book.
More force is needed to start the book moving, because there is more potential energy in the table than in the book.
More force is needed to start the book moving, because there is more friction than when it is already moving.
Peyton and Finley each have a bar magnet. If they bring the south poles of their magnets together, which is true?
The two south poles will repel each other.
The two south poles will attract each other.
No force will be experienced between the two magnets.
One south pole will become a north pole due to the interaction.
Are the forces acting on the object balanced or unbalanced? The man does a flip on the fly board.
(a)
Which of the following is an example of an unbalanced force?
Newton's _____ Law of motion states that every action has an equal and opposite reaction.
1st
2nd
3rd
4th
friction has no affect on speed
What is the net force?
20 N
0 N
400 N
40 N
What is the net force and direction?
3 N to left
3 N
0 N
3 N to right
Which type of waves must have a medium in order to travel?
electromagnetic wave
mechanical wave
During the moon phase shown in the image Earth will experience a -
Spring Tide
Neap Tide
During which moon phases will Earth experience the strongest, or greatest difference between high and low tides?
First Quarter and Full Moon
First Quarter and Last Quarter
New Moon and Full Moon
New Moon and Last Quarter
Spring tides occur when the Earth, Sun and Moon are
At a 90 degree angle
In a straight line
What type of galaxy is the Milky Way?
Spiral
Elliptical
Irregular
Transition
What are the components of the electromagnets?
battery, wire and bulb
battery , copper wire and paper clips
battery, copper wire and iron nail
battery, wire and aluminum
Which electromagnet is weaker?
A
B
Where is the magnetic field the strongest around a bar magnet?
far away from the magnet
at the side of the magnet
at the poles
above the magnet
A contact force is from
objects physically touching
far apart objects
not touching object
always a pull
The force between the phone and the mount is a
contact force
non-contact force
Unlike (opposite) poles _____, like (same) poles _____
repel, attract
connect, repel
attract, repel
repel, connect
Which of the following best describes the motion of an object experiencing balanced forces?
The object moves in a circular path.
The object changes direction.
The object remains at rest or moves with constant velocity.
The object accelerates.
