Which of the following shows the shape of a velocity-time graph for an object with constant positive acceleration?
А
B
Time (s)
Time (s)
с
D
Time (s)
Time (s)
ОА. В
B. A
ОС. С
D. D

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational

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

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of