# Quick Answer: What Is A Rate In Physics?

In physics, rate means rate of change. Basically, how much a certain quantity changes with respect to another quantity that is also changing. You may also sometimes hear the term gradient which describes the same thing. And mathematically, it is also a ratio, say for example.

## What is a rate easy definition?

1a: a quantity, amount, or degree of something measured per unit of something else her typing rate was 80 words per minute. b: an amount of payment or charge based on another amount specifically: the amount of premium per unit of insurance.

## What is a rate in physical science?

Reaction rate, in chemistry, the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

## What is an example of a rate in physics?

A rate is simply the measure of the change of some quantity as a function of time. The rate of speed is measured in miles per hour. We might measure the rate of evaporation of water from a hot mug in grams per minute (In reality, it might be a small fraction of a gram per minute).

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## What is mean by rate in science?

The definition of a rate is a quantity measured and compared to another quantity measured (such as a number of miles per hour) or is the cost of something. An example of a rate is the price of gas.

## What is rate give an example?

A rate is a ratio that compares two quantities with different units of measure. Example of a rate: A plane flew 765 kilometers in 3 hours.

## How is a rate calculated?

Mathematically speaking, any rate will respect the formula: rate=ΔxΔy, where x and y are arbitrary variables, generally uncorrelated, e.g space and time. So, to calculate a rate, you must have two values changing, you fix a time, or any equivalent measure, and calculate their changes, then divide them.

## What is the rate law?

A rate law shows how the rate of a chemical reaction depends on reactant concentration. For a reaction such as aA → products, the rate law generally has the form rate = k[A]ⁿ, where k is a proportionality constant called the rate constant and n is the order of the reaction with respect to A.

## What is the rate constant?

reaction rate The rate constant, or the specific rate constant, is the proportionality constant in the equation that expresses the relationship between the rate of a chemical reaction and the concentrations of the reacting substances.

## What are the 4 factors that affect the rate of reaction?

The factors that affect reaction rates are:

• surface area of a solid reactant.
• concentration or pressure of a reactant.
• temperature.
• nature of the reactants.
• presence/absence of a catalyst.

## What are 3 examples of a rate?

Some examples of unit rates are: miles per hour, blinks per second, calories per serving, steps per day and heart beats per minute.

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## What is rate in statistics?

OECD Statistics. Definition: A rate refers to the occurrence of events over a specific interval in time. Similarly, a rate refers to the measure of the frequency of some phenomenon of interest.

## What are four examples of rate?

Some examples of rate include cost rates, (for example potatoes cost R16,95 per kg or 16,95 R/kg) and speed (for example, a car travels at 60 km/h). When we calculate rate, we divide by the second value, so we are finding the amount per one unit.

## What are the 5 factors that affect the rate of reaction?

Five factors typically affecting the rates of chemical reactions will be explored in this section: the chemical nature of the reacting substances, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration of the reactants, and the

## What is the rate in math?

A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69¢, the rate is 69¢ for 12 ounces. This is not a ratio of two like units, such as shirts.