A block slides down a ramp and across a table. As it slides across the table, it slows to a stop. The block stopped because
A. There was no force acting on it
B. There was a friction force acting on it
2. As the block in Question (6) stopped, its kinetic energy was converted to
A. Thermal energy (heat)
B. Potential energy
3. The earth exerts a downward gravitational force on you. The reaction to this force is
A. Your weight
B. The gravitational force you exert on the earth
C. The support force the floor exerts on you
D. The force you exert on the floor