WorksheetsScience 7: Quarter 3
Total questions: 48
Worksheet time: 32mins
Which of the following results to a change in the velocity of an object?
Which quantity described by a magnitude only?
Which quantity needs both magnitude and direction?
What do you call a propagation of disturbances through a medium in which energy is transferred?
Wave
Wave pulse
Wave train
Wave motion
Which property of a wave describes the number of waves passing a point in one second?
Wavelength
Frequency
Amplitude
Speed
How would describe the motion of a body represented on Illustration A?
Body is at rest
Uniform motion
Decreasing Velocity
Increasing Velocity
Which of the following refers to the sound quality?
Pitch
Tone
Intensity
Frequency
Which refers to a push or pull of an object?
Force
Speed
Displacement
Acceleration
What do you call a section of longitudinal wave where particles are less crowded?
Rarefaction
Compression
Electromagnetic
Mechanical
What type of wave is a sound wave?
Transverse wave
Electromagnetic wave
Longitudinal wave
Mechanical wave
You're riding in a car with a friend who's driving. Suddenly, your friend slams on the brakes to avoid hitting a pedestrian. If you're not wearing a seat belt, what is the most likely outcome?
You will remain safely in your seat as the car comes to a stop.
You will be propelled forward, potentially hitting the dashboard or windshield.
You will be pulled backward, away from the dashboard.
You will experience no change in motion.
Which of the following best describes the relationship between wavelength and pitch in sound waves?
Longer wavelengths correspond to higher pitch.
Shorter wavelengths correspond to higher pitch.
Wavelength and pitch are unrelated.
Wavelength and pitch are inversely proportional.
Which SI unit is used to express speed?
Newton (N)
Meter per Second (m/s)
Meter per second squared (m/s2)
Second (s)
What do you call the total length covered by a moving body?
Force
Speed
Displacement
Acceleration
How would describe the motion of a body represented on Illustration B?
Body is at rest
Uniform motion
Decreasing Velocity
Increasing Velocity
Which refers to a change that occurs in an object's speed or direction in a certain period of time and is measured as change in velocity over a period of time?
Force
Speed
Displacement
Acceleration
Which type of wave that can transmit energy even without any material/medium?
Longitudinal
Transversal
Electromagnetic
Mechanical
Which of the following best describes a transverse wave?
A wave in which particles of the medium vibrate parallel to the direction of wave propagation.
A wave in which particles of the medium vibrate perpendicular to the direction of wave propagation.
A wave that cannot propagate through a medium.
A wave that only travels in a straight line.
Which of the following statements best evaluates the relationship between wavelength and energy in a wave?
Longer wavelengths have higher energy than shorter wavelengths.
Shorter wavelengths have higher energy than longer wavelengths.
Wavelength and energy are unrelated in a wave.
Wavelength and energy are directly proportional in a wave.
Who is the scientist credited with the unit for frequency?
Isaac Newton
Albert Einstein
Max Planck
Heinrich Rudolf Hertz
Which statement best analyzes the relationship between wavelength and energy in the electromagnetic spectrum?
A) Longer wavelengths have higher energy than shorter wavelengths because they travel faster.
B) Shorter wavelengths have higher energy than longer wavelengths because they carry more information.
C) Longer wavelengths have lower energy than shorter wavelengths because they vibrate more slowly.
D) Shorter wavelengths have lower energy than longer wavelengths because they require more time to propagate.
What would be the man's displacement if he walks back to his original position (from Point C to Point D)?
50 steps
10 steps
5 steps
0 (Zero)
Objects that emit or send off their own light are luminous objects. Which of the following is NOT luminous?
A) Sun
B) Stars
C) Moon
D) Light bulbs
In the scenario described, why is it important to wear a seat belt?
To keep you comfortable during long car rides.
To prevent you from sliding around in your seat.
To reduce the risk of injury during sudden stops or collisions by restraining your body and preventing you from being ejected from the vehicle.
To follow traffic laws and regulations.
Why do solid objects allow sound to travel faster compared to liquids and gases?
Because solids have more space between their molecules, allowing sound waves to move faster.
Because solids have tightly packed molecules, which allows sound waves to travel quickly through the material.
Because liquids and gases have higher densities, causing sound waves to slow down.
Which refers to a form of electromagnetic radiation with frequency ranges from 4x104 to 8x1014 Hz and responsible for the sense of sight?
A) Visible Light
B) Radio wave
C) Micro wave
D) Ultraviolet
Bats are fascinating mammals known for their ability to navigate and hunt in the dark. How do bats primarily rely on sound waves, rather than light waves, for navigation during nighttime?
A) Because bats have poor eyesight and cannot see in the dark, making it difficult to detect obstacles using light waves.
B) Because sound waves travel faster than light waves, allowing bats to quickly detect and avoid obstacles in their path.
C) Because sound waves have a longer wavelength than light waves, providing more detailed information about the surroundings.
D) Because bats emit high-frequency sound waves that bounce off objects, allowing them to detect obstacles and prey through echolocation.
How does a thermos flask keep hot liquids hot and cold liquids cold?
A) By preventing heat transfer through conduction.
B) By allowing heat to escape through radiation.
C) By promoting heat transfer through convection.
D) By absorbing heat from the surroundings.
How does an increase in amplitude affect the intensity of a sound wave?
An increase in amplitude decreases the intensity of the sound wave.
An increase in amplitude has no effect on the intensity of the sound wave.
An increase in amplitude increases the intensity of the sound wave.
An increase in amplitude decreases the velocity of the sound wave.
Which of the following situation shows scalar quantity?
A displacement of 100 km to the East
A force of 80 N East
A normal body temperature of 37°
A velocity of 120 km/h Southwest
What distance would be covered by a moving vehicle in 1 minute if its speed is 5.0 m/s?
5 m/s
6 m/s
300 m/s
4 m/s
If you shake one end of a rope up and down, causing a wave to travel along its length, what type of wave are you producing?
Transverse wave
Longitudinal wave
Electromagnetic wave
Standing wave
What do you call a form of energy that is produced when air molecules vibrate and move in pattern known as wave?
Light
Sound
Water
Wind
Which device used to measure temperature?
A) Barometer
B) Thermometer
C) Decibel Meter
D) Speedometer
How does heat flow from one object to another?
A) Heat flows from a hotter object to a colder object until thermal equilibrium is reached.
B) Heat flows from a colder object to a hotter object until thermal equilibrium is reached.
C) Heat flows randomly between objects regardless of temperature differences.
D) Heat flows in a specific direction determined by the density of the objects involved.
How long does it take for visible light to travel from the Sun to the Earth?
A) 8 minutes and 20 seconds
B) 24 hours
C) 1 second
D) 1 year
What will be the arrangement of electromagnetic waves if we will arrange them according to decreasing energy?
A.) Gamma, radio, microwave
B.) X-ray, light, radio
C.) X-ray, gamma, ultraviolet
D.) Gamma, ultraviolet, X-ray
In an experiment, a wave pulse is generated on a stretched rope by quickly moving one end up and down. Which of the following statements best describes the behavior of the wave pulse as it travels along the rope?
The amplitude of the wave pulse decreases as it travels along the rope.
The speed of the wave pulse increases as it travels along the rope.
The shape of the wave pulse remains unchanged as it travels along the rope.
The wavelength of the wave pulse decreases as it travels along the rope.
If you compress and then stretch a spring repeatedly, what type of wave are you producing?
Transverse wave
Longitudinal wave
Electromagnetic wave
Standing wave
Based on the situation and diagram shown above, what would be the man's total distance if he walks 15 steps backward from Point C to Point D?
40 steps
10 steps
5 steps
0 (Zero)
Lydia de Vega is a world known Filipino track and field athlete. She can run the 100.0 m dash in about 11.0 seconds. What is her average speed?
110 m/s
9.09 m/s
1,110 m/s
89 m/s
A man is driving his sports car down a four-lane highway at 40 m/s. He comes up behind a slow-moving dump truck and decides to pass it in the left-hand lane. If Nathaniel can accelerate at 5 m/s2, how long will it take for him to reach the speed of 60 m/s?
1 s
2 s
3 s
4 s
Consider the following scenario: A thunderstorm is brewing, and dark clouds are gathering overhead. Suddenly, a bolt of lightning streaks across the sky, followed by a loud clap of thunder. Based on this scenario, which of the following statements provides the most accurate analysis of how lightning occurs?
A) Lightning is caused by clouds colliding with each other, leading to the discharge of electrical energy.
B) Lightning occurs when water droplets in the atmosphere freeze and release electrical energy.
C) Lightning is the result of the buildup and discharge of electrical charge within clouds and between clouds and the ground.
D) Lightning happens when the sun's rays interact with raindrops in the atmosphere, producing electrical sparks.
Which refers to a form of energy that comes from electrically charged bodies such as ions and electrons?
A. Light Energy
B. Electrical Energy
C. Wind Energy
D. Wave Energy
Which analogy is correct about insulator and conductor?
A. conductor : metal spoon ; insulator : wood
B. conductor : paper ; insulator : towel
C. conductor : copper wire ; insulator : tin can
D. conductor : leaves ; insulator : galvanized steel
Imagine you're setting up a new electrical appliance in your home. Why is it important to ensure that the appliance is properly grounded or earthed?
A) To prevent electrical shocks and fires by providing a safe path for fault currents.
B) To reduce static electricity buildup and protect the appliance from lightning strikes.
C) To improve the efficiency of the appliance and ensure stable voltage levels.
D) To minimize electrical noise and interference in the appliance's operation.
Consider the following scenario: Two objects, one positively charged and the other negatively charged, are brought close to each other. Based on the principles of the law of charges, which of the following statements provides the most accurate analysis of what will happen?
A) The positively charged object will repel the negatively charged object, causing them to move away from each other due to their like charges.
B) The negatively charged object will attract the positively charged object, causing them to move closer to each other due to their opposite charges.
C) The positively charged object will attract the negatively charged object, causing them to move closer to each other due to their opposite charges.
D) The negatively charged object will repel the positively charged object, causing them to move away from each other due to their like charges.
What most likely happened when the mongo seeds were heated with water, and in what direction did they move?
A) The mongo seeds absorbed water, causing them to swell and expand. This expansion likely pushed the seeds towards the heat source.
B) The heat from the water caused the seeds to release trapped gases, resulting in a slight upward movement.
C) The seeds softened but remained stationary due to the absence of external forces.
D) The seeds became buoyant and floated on the water's surface but did not move directionally.
