Which action will result in a product with new chemical properties? OPTIONS:
- shredding a newspaper
- breaking a mirror
- cutting wood
- popping popcorn
A: popping popcorn

Which mass is undergoing the greatest amount of acceleration? OPTIONS:
- 1 kg subjected to a force of 1 N
- 1 kg subjected to a force of 100 N
- 100 kg subjected to a force of 1 N
- 100 kg subjected to a force of 100 N
A: 1 kg subjected to a force of 100 N

Which part of an atom occupies the majority of the volume? OPTIONS:
- nucleus
- protons
- neutrons
- electrons
A: electrons

Emily is riding her bicycle. Which best explains why only some of the energy used to pedal her bicycle is transferred into forward motion of the bicycle? OPTIONS:
- The energy of the bicycle tire is applied in a circular motion.
- The energy of the bicycle is transferred to only one wheel.
- The gears and chain of the bicycle are covered with oil.
- The gears and chain of the bicycle generate friction.
A:
The gears and chain of the bicycle generate friction.