In the absence of air resistance, a projectile launched at an angle of 15 o above the horizontal will have the same       range as a projectile launched at which of the following angles?                                                                             

2.5 kg and 3.0 kg mass are released 25 m above ground (neglect air resistance)  

What will happen if switch 3 is closed and the other switches are left open?

Resistance is a measure of how difficult it is for electrons to flow through a substance. What is the unit used for measuring resistance?

What happens when silk is rubbed on a glass rod?  

What is the equation that represents Ohm’s law?

In the circuit shown, if the resistor at X is 20Ω the resistor at Y is 10 Ω, and the resistor at Z is 25 Ω, where would the current be greatest?  

Which of the following is an unsafe location to be during a lightning storm?

The strength of a battery is determined by the potential difference between two points on the circuit contained within the battery. What is the common term used to describe this strength, or potential difference?

A neutral object loses electrons. What is the new charge on the object?