Physics and Energy
A wave enters a new medium and slows down. What happens to wavelength?
It decreases
What reaction involving atomic nuclei is the source of the Sun’s energy?
a) Nuclear fusion
b) Nuclear fission
c) Chemical combustion
a) Nuclear fusion
The organelle known as the "powerhouse of the cell" because it produces ATP through cellular respiration.
What is the mitochondria?
The two primary gases in Earth's atmosphere that are most responsible for the greenhouse effect.
What are carbon dioxide (CO₂) and water vapor (H₂O)?
Who proposed the general theory of relativity?
Einstein
A person uses 4000 J of energy but only 25% becomes useful work.
1000 J; the rest is lost as heat (thermal energy)?
Which is the only metal that is liquid at room temperature?
Mercury
Our bodies need iron! Where in the body is most of the iron found?
In our blood
The most abundant gas in the Earth's atmosphere
What is nitrogen?
What is the unit of measure for cycles per second?
a) decibels
b) Hertz
c) amperes
b) Hertz
A transverse wave oscillates along paths at what angle to the direction of the wave''s propagation?
a) right angles
b) acute angles
c) obtuse angles
a) right angles
What is the most abundant element in the universe?
a) Nitrogen
b) Helium
c) Hydrogen
c) Hydrogen
The longest type of cell in the human body
What is a neuron?
What is the original source of almost all energy in most ecosystems?
sunlight
Who was awarded a Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium?
Marie Curie
What is the speed of light?
approx. 3.00x108 m/s
Who hypothesized that it would be impossible to know the exact location and exact momentum of a particle at the same time?
a) Heisenberg
b) De Broglie
d) Schrodinger
a) Heisenberg
The scientific study of animals is called_________.
zoology
Which of the following best describes a biome?
a) A group of the same species in one area
b) A large region with a specific climate and distinct plant and animal life
c) The role an organism plays in its ecosystem
b) A large region with a specific climate and distinct plant and animal life
It is the formal scientific name for the virus that causes COVID-19
What is SARS-CoV-2 ?
Which type of electromagnetic radiation has the shortest wavelength?
a) microwave
b) gamma ray
c) X-ray
b) gamma ray
Which of these is NOT a real element?
a)Thorium
b) Adamantium
c) Plutonium
d) Promethium
b) Adamantium
The study of fungi is called what?
a) fungiology
b) ornithology
c) mycology
c) mycology
In a food web, which type of organism is always found at the base?
a) Primary consumers
b) Decomposers
c) Producers
c) Producers
What instrument is used to measure the ground oscillations produced by an earthquake?
a)seismograph
b)radioscope
c) magnetic resonance imager
a)seismograph