# Metric Quiz - 7th Grade

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There are different units of measure in existence, and they can all be transmitted into others that measure the same thing by the use of specific formulas. Can you change kilometers into miles and pounds to kilograms? If you just said yes then test out what you know about the metric system by taking up the quiz below. All the best!

• 1.

### 1.5 km = _______ m

• A.

.015

• B.

.00015

• C.

150

• D.

1500

D. 1500
Explanation
The correct answer is 1500 because 1 kilometer is equal to 1000 meters. So, to convert 1.5 kilometers to meters, we multiply 1.5 by 1000, which gives us 1500 meters.

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• 2.

### 6 m = ___________cm

• A.

6

• B.

600

• C.

.06

• D.

.006

B. 600
Explanation
The question is asking for the equivalent measurement in centimeters when given a measurement in meters. Since there are 100 centimeters in one meter, to convert meters to centimeters, you would multiply the given measurement by 100. Therefore, 6 meters is equal to 600 centimeters.

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• 3.

### 333 cm = 3.33

• A.

Dm

• B.

Km

• C.

M

• D.

Mm

C. M
Explanation
The given answer "m" is correct because when converting from centimeters to meters, we divide by 100. Therefore, 333 cm divided by 100 equals 3.33 m.

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• 4.

### 1 m = ___________

• A.

100 cm

• B.

1000 cm

• C.

.001 cm

A. 100 cm
Explanation
One meter is equal to 100 centimeters.

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• 5.

### 145 mm = ________m

• A.

.0145

• B.

1.45

• C.

145,000

• D.

.145

D. .145
Explanation
To convert millimeters to meters, we divide the value by 1000 because there are 1000 millimeters in a meter. In this case, 145 mm divided by 1000 equals 0.145 meters. Therefore, the correct answer is .145.

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• 6.

### What instrument is ued to measure length?

• A.

• B.

Triple beam balance

• C.

Metric ruler

• D.

Thermometer

C. Metric ruler
Explanation
A metric ruler is used to measure length. It is a tool that has markings in centimeters and millimeters, allowing for precise measurements. Graduated cylinders are used to measure volume, triple beam balances are used to measure mass, and thermometers are used to measure temperature. However, for measuring length specifically, a metric ruler is the appropriate instrument.

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• 7.

### What instrument is used to measure mass?

• A.

• B.

Triple beam balance

• C.

Metric ruler

• D.

Thermometer

B. Triple beam balance
Explanation
A triple beam balance is used to measure mass. It consists of a beam that is balanced on a fulcrum, with three sliding weights that can be adjusted to find the mass of an object. The object is placed on the pan and the weights are moved until the beam is balanced. The sum of the weights gives the mass of the object. A graduated cylinder is used to measure volume, a metric ruler is used to measure length, and a thermometer is used to measure temperature.

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• 8.

### What instrument measures how hot or cold something is?

• A.

• B.

Triple beam balance

• C.

Metric ruler

• D.

Thermometer

D. Thermometer
Explanation
A thermometer is an instrument that measures the temperature of an object or the surrounding environment. It consists of a glass tube filled with a liquid, usually mercury or alcohol, which expands or contracts with changes in temperature. The liquid rises or falls in a calibrated scale, providing a numerical value that indicates the level of hotness or coldness. Therefore, a thermometer is the correct instrument for measuring temperature, unlike the other options which are used for different purposes such as measuring volume, mass, or length.

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• 9.

### The metric system is based upon what number?

• A.

5

• B.

3

• C.

10

• D.

25

C. 10
Explanation
The metric system is based upon the number 10. This is because the metric system uses a decimal system of measurement, where units are based on powers of 10. This makes conversions between different units of measurement much easier, as they involve simply moving the decimal point. For example, there are 1000 millimeters in a meter, 100 centimeters in a meter, and 10 millimeters in a centimeter. This system is widely used around the world and is considered to be more logical and easier to use than other systems of measurement.

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• 10.

### "Kilo" means...

• A.

1000x

• B.

100x

• C.

10x

• D.

5x

A. 1000x
Explanation
"Kilo" is a prefix derived from the Greek word "chilioi," meaning one thousand. It is commonly used in the metric system to denote multiplication by one thousand. Therefore, when "kilo" is used as a prefix, it means 1000 times the base unit.

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• 11.

### "Milli" means...

• A.

1/100

• B.

1/1000

• C.

1/10

• D.

1

B. 1/1000
Explanation
The term "Milli" is derived from the Latin word "mille" which means "thousand". In the metric system, "milli" is a prefix that denotes one thousandth of a unit. Therefore, the correct answer is 1/1000, as it represents the fraction of a whole unit that "milli" signifies.

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• 12.

### What is the metric unit for measuring mass?

• A.

Foot

• B.

Pound

• C.

Kilogram

• D.

Ounce

C. Kilogram
Explanation
The metric unit for measuring mass is the kilogram. The kilogram is the base unit of mass in the International System of Units (SI) and is used to measure the amount of matter in an object. It is defined as the mass of the International Prototype of the Kilogram, a platinum-iridium cylinder kept at the International Bureau of Weights and Measures in France. The kilogram is widely used in scientific and everyday applications for measuring the mass of objects.

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• 13.

### "Centi" means...

• A.

100x

• B.

1/10

• C.

1/100

• D.

10x

C. 1/100
Explanation
The prefix "centi-" is derived from the Latin word "centum," meaning "hundred." In the metric system, "centi-" represents a factor of 1/100 or dividing by 100. Therefore, the correct answer is 1/100.

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• 14.

### What is the metric unit for measuring length?

• A.

Inch

• B.

Meter

• C.

Foot

• D.

Yard

B. Meter
Explanation
The metric unit for measuring length is the meter. The meter is the standard unit of length in the International System of Units (SI) and is used in most countries around the world. It is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second. The meter is a widely accepted and used unit for measuring length in various fields such as science, engineering, and everyday life.

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