There are two bowling balls. Ball A has a mass of 20 kilograms. Ball B has a mass of 40 kilograms. They are thrown at the same exact speed. How much more kinetic energy does Ball B have?
none
double
triple
quadruple
When a positive particle is moved closer to another positive particle, what happens?
The electric potential decreases.
The electric potential doesn’t change.
No work is done
The electric potential increases.
Which is the least efficient form of heat transfer?
conduction
convection
radiation
All forms of heat transfer are equally effective.
Imagine a pot of water on a hot stove. Which methods of heat transfer are heating the pot and water respectively?
conduction-pot and water/convection-water
radiation-pot/convection-water
convection-pot and water/conduction-water
conduction-pot/radiation-water
