EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The unit for Energy is ____
A
J, Joules
B
N, Newtons
C
Amps
D
W, Watts
Explanation: 

Detailed explanation-1: -1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. 1 Watt is the power from a current of 1 Ampere flowing through 1 Volt.

Detailed explanation-2: -1 Units. The SI unit for energy is the joule (J): 1 J=1 newton metre (N m). Another unit is the calorie (cal), which is defined as the heat required to raise the temperature of 1 g of pure water by 1°C at 1 atm pressure.

Detailed explanation-3: -Named in honour of the English physicist James Prescott Joule, it equals 107 ergs, or approximately 0.7377 foot-pounds. In electrical terms, the joule equals one watt-second-i.e., the energy released in one second by a current of one ampere through a resistance of one ohm.

Detailed explanation-4: -Joule (J). This is the basic energy unit of the metric system, or in a later more comprehensive formulation, the International System of Units (SI). It is ultimately defined in terms of the meter, kilogram, and second.

Detailed explanation-5: -The joule (/ˈdʒuːl/ JEWEL, /ˈdʒaʊl/ JOWL; symbol: J) is the unit of energy in the International System of Units (SI).

There is 1 question to complete.