Sophie and vivian were trying to push a cart up a ramp. they wanted to decrease the amount of effort they needed to use to get to the top of the ramp. sophie said she wanted to increase the length of the ramp. vivian said she wanted to decrease the length of the ramp. who is correct and why?
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Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom