Describe each type of item tested in terms of its V vs I being "Ohmic" or not. Use one sentence per item-type tested. Item types tested are Resistors, Coil, Diode, Capacitors, and Light Bulb.

Explanation:

When the temperature of a conductor remains constant, the current across the conductor is directly proportional to the potential difference applied across the conductor. This is called Ohm's law.

The devices which obeys the Ohm's law are are ohmic devices.

1. Resistors are the Ohmic devices as they follow the Ohm's law.

2. Coil are the Ohmic devices as they are tightly wound electrical wires.

3. Diodes are the semiconductor devices so they do not obey ohm's law, so they are non ohmic devices.

4. capacitors are not the ohmic devices as their resistance depends on the frequency of the AC current applied.

5. Light bub is an example of heating effect of current, it obey Ohm's law and so that it is an ohmic device.

f=ma newton

f=100x2.5=250n

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.