by Sunday | Oct 7 | NABTEB QUESTIONS
The difference between force and impulse: Force is that push or pull that will change or tend to change the state of rest or uniform motion of a body while impulse is the product of the (average) force acting on a body and the time duration which it acts. OR Force =...
by Sunday | Oct 7 | NABTEB QUESTIONS
Newtons 1st law: states that A body will continue in its state of rest or uniform motion along a straight line unless it is acted upon by an (external) impressed force. Newtons 2nd Law: states that the time rate of change of momentum of a body (mass x velocity) is...
by Sunday | Oct 6 | NABTEB QUESTIONS
A capacitor is a device for storing electric charges or for storing electricity The three types of capacitors are: (1) Variable air capacitor (2) paper capacitor (3) Electrolytic capacitor Appliances that use capacitor are: 1. Radio tune circuit 2. Car ignition system...
by Sunday | Oct 6 | NABTEB QUESTIONS
Electric conductors are materials that will allow easy movement of electrons through them. While insulators are materials which do not allow easy movement of electrons through them. A good conductor of electricity is a good conductor of heat. Examples of conductors...
by Sunday | Oct 6 | NABTEB QUESTIONS
1. it requires a long exposure time to develop the image on the film, allowing sufficient light to enter the boxes. 2. it can only take photographs of still objects. 3. it produces an inverted image