Anonymous Nobody
This page lists questions and answers that were posted by visitors named Anonymous Nobody.
Questions
The following questions were asked by visitors named Anonymous Nobody.
Which type of wave can carry energy through a vacuum?(1 point) A mechanical B seismic C sound D electromagnetic
1 year ago
Which type of electromagnetic energy must be used carefully in medicine so it does not damage living tissue?(1 point) A gamma rays B radio waves C visible light D low frequency waves
1 year ago
Wave Wavelength (meters) Frequency (hertz) W 5 200 X 3 300 Based on the given information, which conclusion can be made? (1 point) A Wave X has a greater amplitude. B Wave W has a greater amplitude. C Wave W has a faster speed. D Wave X has a faster speed...
1 year ago
A room with which type of surface will most likely produce an echo?(1 point) carpet foam glass dirt
1 year ago
The formula vw=f⋅λ describes the relationship between the speed of a wave ( vw ), and its frequency ( f ) and wavelength ( λ ). For example, if a wave has a frequency of 120 Hz and a wavelength of 5m, it would have a speed of 600 m/s. In one or two senten...
1 year ago
Jamal wants to know how fast his skateboard can roll down the ramp in front of his school. So, Jamal places the back of the skateboard even with the top of the ramp and times how long it takes before the front of the skateboard reaches the end of the ramp...
1 year ago
Which of the following is a limitation of models? Models usually do not have exactly the same features as the objects or events that they represent. It is often easier to study models rather than the objects or events that they represent. Sometimes models...
1 year ago
A scientist read about an experiment done by someone else. She does the same experiment in her lab to make sure it works. This is an example of(1 point) Responses replication replication redundancy redundancy replacement replacement repetition repetition
1 year ago
The factor that is changed throughout an experiment is called the _______.(1 point) Responses constant constant hypothesis hypothesis variable variable apparatus
1 year ago
Which type of rock contains minerals arranged in crystals and forms when molten rock cools and turns solid?(1 point) Responses sedimentary rock sedimentary rock fossilized rock fossilized rock metamorphic rock metamorphic rock igneous rock
1 year ago
The main agents that cause metamorphic rocks to form are(1 point) Responses melting and cooling. melting and cooling. heat and pressure. heat and pressure. deposition and compaction. deposition and compaction. weathering and erosion.
1 year ago
Rocky material from the Earth's interior can reach the surface, and be pushed and folded upward during the process of _______. One of the processes that works to return this material back to the Earth's interior is _______.(1 point) Responses weathering,...
1 year ago
What causes earthquakes and volcanic eruptions, and creates mountains and ocean basins?(1 point) Responses the carbon cycle and the Earth's magnetic field. the carbon cycle and the Earth's magnetic field. the tides and solar eclipses. the tides and solar...
1 year ago
Some rocks are formed by heat and pressure. What is the heat source for rock formation?(1 point) Responses heat from forest fires. heat from forest fires. heat from the Earth's interior. heat from the Earth's interior. heat from electrical currents. heat...
1 year ago
Which of the following natural disasters often occurs at the boundaries between tectonic plates?(1 point) Responses hurricane hurricane tornado tornado flood flood earthquake
1 year ago
The Law of Superposition helps scientists to(1 point) Responses decipher the different types of sedimentary rocks. decipher the different types of sedimentary rocks. learn more about how sedimentary rock is formed. learn more about how sedimentary rock is...
1 year ago
Where extensive deforestation has occurred, _______ is often a result.(1 point) Responses increased diversity increased diversity increased erosion increased erosion mountain building mountain building improved water quality
1 year ago
. Urban areas tend to be warmer than the rural areas that surround them. This is mainly caused by how the materials that humans use for building, such as concrete, absorb and radiate energy from the Sun. This is known as the "heat island" effect. Which of...
1 year ago
A sample of nitrogen gas is at 37°C (99°F). If heat is removed from the sample, its temperature will _______, and it could undergo a change of state into a ________.(1 point)
1 year ago
A transfer of heat within a liquid or gas that involves warm particles moving in currents is(1 point) Responses conduction conduction convection convection
1 year ago
Which of the following is true about light waves and sound waves?(1 point) Responses Sound waves and light waves travel at the same speed through different materials. Sound waves and light waves travel at the same speed through different materials. Light...
1 year ago
Spped of light and speed of sound per second. answer. now.
1 year ago
speed of light in the air speed of sound in the air Are they the same? Or are they not?
1 year ago
White light is made up of(1 point) Responses only the types of visible light with very long wavelengths. only the types of visible light with very long wavelengths. ultraviolet light and gamma rays. ultraviolet light and gamma rays. infrared light and rad...
1 year ago
When an object such as a stone is dropped into water, it disturbs the surface of the water. Waves form at the surface of the water and travel outward from the point of the disturbance. The diagram below is based on a single frame from a video of the waves...
1 year ago
A machine produces compression waves in a spring that is 120 cm long by pulsing twice every second. The back and forth movement of the pulse creates compressed sections of the spring that are 30 cm apart and travel toward the other end of the spring. Whic...
1 year ago
Create a horror video game taking place in a castle.
1 year ago
Answers
The following answers were posted by visitors named Anonymous Nobody.