Physics
What is the SI unit of force?
Newton, N
What is the name of the element with the atomic number 8?
Oxygen
What is the basic unit of life?
The cell
What is an isotope?
Atoms of the same element with different numbers of neutrons
What is the equation for calculating work done?
Work = Force × Distance
how many neutrons does Nitrogen have (use your periodic table)?
14-7=7 7 neutrons
Which organelle is responsible for producing energy in the cell?
mitochondrion
What is the function of stomata in plant leaves?
They allow gas exchange and control water loss
How does the Doppler effect explain the change in pitch of a moving ambulance siren?
The frequency increases as it approaches and decreases as it moves away due to wave compression and stretching
What type of bonding occurs in sodium chloride (NaCl)?
Ionic bonding
What process do plants use to convert sunlight into energy?
Photosynthesis
What is the difference between an antigen and an antibody?
An antigen is a foreign substance that triggers an immune response; an antibody is a protein that binds to antigens to neutralize them
What is the difference between longitudinal and transverse waves?
Longitudinal waves have parallel oscillations; transverse waves have perpendicular oscillations to the wave direction
What is the electron configuration of Potassium
2,8,8,1
What is the name of the protein that carries oxygen in red blood cells?
Hemoglobin
What is Newton’s Second Law of Motion?
Force = Mass × Acceleration, F = ma
What is the principle behind electromagnetic induction?
A changing magnetic field induces an electric current in a conductor
What makes determins how metallic an element is?
how easily it is willing to give up its valence electrons
What type of enzyme breaks down starch into sugars?
Amylase
Why does a straw appear bent when placed in a glass of water?
Because light rays change speed and direction when passing from air to water, causing refraction at the boundary between the two mediums