What is the relationship between a calorie and a joule quizlet?

A calorie is the energy needed to warm 1 g of water by 1 ∘ C ; a Calorie is 1000 calories; a calorie is 4.19 joules.

What is the relationship between calories and energy?

Calories are the amount of energy released when your body breaks down (digests and absorbs) food. The more calories a food has, the more energy it can provide to your body. When you eat more calories than you need, your body stores the extra calories as body fat. Even a fat-free food can have a lot of calories.

What is the relation between joule and energy?

Joule is a watt X seconds. watts are units of power whereareas joules are unit of energy. power is energy in accordance to time: p=E/t. so one watt of power is equal to one joule per second.

What is the relationship between joules and kilojoules?

Definition: The kilojoule is an SI (International System of Units) derived unit of energy that is equal to 1000 joules. The joule is defined as the amount of energy transferred to an object when a one newton force acts on an object in the direction movement through a distance of one meter.

Which is bigger a calorie or joule?

The unit joule is defined in terms of work done. However, the calorie is defined in terms of the heat energy as follows: One calorie is the amount of heat required to raise the temperature of a one gram of water by one degree Celsius. Hence, we see here that the calorie is numerically, greater than the joule.

What is a joule quizlet?

Joule. A unit of work equal to one newton-meter. Calories. A unit used to measure the amount of energy contained in foods.

What’s the difference between kJ and calories?

The energy we get from food and drink is measured in kilojoules (kJ). This is the metric term for calorie. Kilojoules and calories represent the same thing. One calorie is about four kilojoules.

Is calories kcal or kJ?

Checking calories in food The calorie content is often given in kcals, which is short for kilocalories, and also in kJ, which is short for kilojoules. A kilocalorie is another word for what’s commonly called a calorie, so 1,000 calories will be written as 1,000kcals. Kilojoules are the metric measurement of calories.

What will be the relationship between joule & erg when we know that 5 2 1 Newton 10 dyne & 1’m 10 cm?

The relation between joule and erg is 1 joule = 10⁷ erg.

What is the relationship between Newton and dyne?

dyne, unit of force in the centimetre-gram-second system of physical units, equal to the force that would give a free mass of one gram an acceleration of one centimetre per second per second. One dyne equals 0.00001 newton.

Which is more joules or kilojoules?

One kilojoule is equal to 1,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter. The kilojoule is a multiple of the joule, which is the SI derived unit for energy.

What is the difference between joules J and kilojoules KJ?

Joules and KiloJoules are units of the international system of units (SI) that measure energy. The standard symbol for Joule is J, whereas the symbol for KiloJoule is KJ. 1 J equals precisely 0.001 KJ, therefore there are 1,000 Joules in a KiloJoule.

What is the formula for converting calories to joules?

Joule to Calorie Conversion Example. Task: Convert 8,368 joules to calories (show work) Formula: J ÷ 4.184 = calories Calculations: 8,368 J ÷ 4.184 = 2,000 calories Result: 8,368 J is equal to 2,000 calories.

How many joules are in one calorie?

The unit of energy in the International System of Units is the joule. One small calorie is approximately 4.2 joules (so one large calorie is about 4.2 kilojoules).

Is a Joule a calorie?

A calorie (or thermochemical calorie) is a unit of energy in the International System of Units (SI). The symbol for calorie is cal. There are 0.23900574 calories in a joule. A calorie is measured as the quantity of heat required to raise the temperature of 1 gram of water by 1°C from a standard initial temperature at a pressure of 1 atmosphere.

What is the difference between KCAL and calories?

Main Difference. Cal and Kcal are the units of energy. cal stands for calories while kcal stands for kilocalories. cal is the smaller unit of energy while kcal is the large unit of energy. 1 kcal is equal to 1000 cal.