Never make same mistake twice

Question 1

Greater mass between two objects radius will be……with same gravitational force of attraction

Answer 1

Larger

Question 2

Why can’t anything in the universe travel faster than c

Answer 2

Speed of light is the same for all observers

Question 3

Why does reading on voltmeter decrease when switch is closed in internal resistance circuit

Answer 3

When the switch is closed there is a current (in the circuit).
Voltage (is dropped) across the internal resistance

Question 4

Graph showing how current varies with time for capacitor when resistor in circuit is increased

Answer 4

Initial current will be lower so y intercept will be lower than previously, it will take longer for current to be 0 so x intercept is greater.

Question 5

How lower capacitance capacitor effects how long a lamp will be charged for

Answer 5

Lamp will stay lit for a shorter time, since lower capacitance means that less charge will be stored in the capacitor so time that the lamp can be charged for will be less