Problem: OPTIONS:
- wave frequency
- wave volume
- wave threshold
- wave amplitude
Q: Q: For most waves, energy is proportional to what, a term that describes the height of the wave? A:
Answer: wave amplitude

Problem:OPTIONS:
- reaction
- spasm
- sensor
- reflex

Q: The "knee-jerk" motion that people involuntarily perform after being struck in the knee in a certain way is an example of what kind of behavior? A:
****
A: reflex

Q: When your body digests food, it breaks down the molecules of nutrients and releases what? A:
OPTIONS:
- waste materials
- gas
- calories
- energy
energy

Q: Electrons can move from one atom to another; when they do, specimens called what, with overall electric charges, are formed? A:
OPTIONS:
- atoms
- molecules
- cations
- ions

Answer: ions

Question: Q: An elastic collision is one that conserves internal energy of what type? A:
OPTIONS:
- thermal
- seismic
- potential
- kinetic
Answer: kinetic

input: OPTIONS:
- acids
- neutrons
- resistors
- nucleophiles Now, answer this question: Q: Electrophiles have a strong tendency to react with what? A:
A:
output:
nucleophiles