Advertisements
Advertisements
Question
Fill in the blank
The ability to do work is called ______
Advertisements
Solution
The ability to do work is called energy
APPEARS IN
RELATED QUESTIONS
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?
Fill in the blank
Cooking gas converts _______ energy into heat energy.
Select the correct alternatives
When a bulb lights up on passing current, the change of energy is
Tick the most appropriate answer.
The force applied on a machine to do work is called the
Answer the following in short.
What do you understand by the term efficiency of a machine’?
Give a reason for the following.
The efficiency of a machine is always less than 100%.
How many joules are there in one kilowatt-hour?
A cell converts one form of energy into another form. Name the two forms.
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
There is a car. Its tank is full of fuel but it does not move. Why is that?
A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g = 10 m s–2)
