All questions of Length, Perimeter, and Area for Grade 2 Exam

Measuring Maximum Length at One Time: Pace




What is Pace Measurement?
Pace is a traditional unit of measure that represents the distance covered in a single step. It is commonly used when estimating distances during walks or hikes.




How is Pace Measured?
To measure pace, an individual takes one step and notes the distance covered. This distance can then be used as a reference point for estimating longer distances based on the number of steps taken.




Advantages of Using Pace Measurement
- Pace measurement is simple and easy to use, requiring only a person's natural stride length.
- It can be a practical way to estimate distances quickly without the need for specialized tools.




Maximum Length Measurement Using Pace
When measuring maximum length at one time, pace can be a useful tool for individuals to gauge longer distances. By counting the number of steps taken over a particular distance, one can easily calculate the total length covered by multiplying the step count by the pace measurement. This method allows for a rough estimate of the maximum length that can be measured in a single stretch.




Conclusion
Pace measurement provides a convenient way to estimate distances and measure maximum length at one time. By using this traditional method, individuals can quickly assess the length of a path or area without the need for complex measuring devices.

The capacity of a bucket refers to the amount of liquid or material it can hold. It is usually measured in units such as liters (L) or gallons (gal). However, the given options for measuring the capacity of a bucket are cm, g, kg, and I. Let's analyze each option to determine the correct answer.

- Option a) cm: Centimeters (cm) is a unit of length, not capacity. It measures the distance between two points and cannot be used to measure the capacity of a bucket. Therefore, this option is incorrect.

- Option b) g: Grams (g) is a unit of weight or mass, not capacity. It measures the amount of matter in an object and cannot be used to measure the capacity of a bucket. Therefore, this option is also incorrect.

- Option c) kg: Kilograms (kg) is another unit of weight or mass, similar to grams. Like grams, it cannot be used to measure the capacity of a bucket. Therefore, this option is incorrect as well.

- Option d) I: The correct answer is option 'd' - I. However, the option 'I' seems to be a typo or error in the question. It is likely that the intended answer was liters (L) or gallons (gal), which are commonly used units for measuring the capacity of a bucket.

In conclusion, the capacity of a bucket is typically measured in liters (L) or gallons (gal).

Height, Weight, and Length Comparison:

Height, weight, and length are different physical quantities that are measured in different units. Let's analyze each option to identify the odd one out.

Height of a building = 10 m
- The height of a building is measured in meters, which is a unit of length.
- It is common to measure the height of buildings in meters or feet.
- This option is consistent with measuring a physical dimension.

Height of a pole = 15 m
- Similar to the height of a building, the height of a pole is also measured in meters.
- Poles, like buildings, can be tall structures that require height measurements.

Weight of a watermelon = 2 kg
- The weight of an object is measured in kilograms or pounds.
- Weight is a measure of the force exerted on an object due to gravity.
- This option stands out because weight is a different physical quantity compared to height and length.

Length of a badminton = 1 m
- The length of an object is also measured in meters or other units of length.
- It is common to measure the length of items such as badminton rackets in meters or centimeters.
- This option is consistent with measuring a physical dimension.

Conclusion:
The odd one out is option C, "Weight of a watermelon = 2 kg," because weight is a different physical quantity compared to height and length. Height and length are measurements of physical dimensions, while weight is a measure of the force exerted on an object due to gravity.

To find out how many glasses of water are required to fill 4 water bottles, we need to understand the given information and then calculate the answer.

Given information:
- Three glasses of water can fill a water bottle.

To find the number of glasses required to fill 4 water bottles, we can break it down into smaller steps:

Step 1: Calculate the number of glasses required to fill one water bottle.
- Given that three glasses of water can fill one water bottle, we can conclude that one water bottle requires 3 glasses of water.

Step 2: Calculate the total number of glasses required to fill 4 water bottles.
- To find the number of glasses required to fill 4 water bottles, we need to multiply the number of glasses required for one water bottle by the number of water bottles.
- In this case, one water bottle requires 3 glasses of water, and we have 4 water bottles.
- So, 3 glasses * 4 bottles = 12 glasses.

Therefore, the correct answer is option 'B': 12 glasses.

Statement Analysis:
The statements in question are related to units of measurement for weight. Let's analyze each statement separately:

Statement A: Gram is a unit to measure the weight of a lion.
This statement is False (F). Gram is a unit of measurement for weight, but it is not typically used to measure the weight of a lion. The weight of a lion is usually measured in kilograms or pounds.

Statement B: Kilogram is a unit to measure the weight of a sack of rice.
This statement is True (T). Kilogram is a standard unit of measurement for weight and is commonly used to measure the weight of various objects, including a sack of rice.

Explanation:
The given statements are contrasting the units of measurement for weight.

- Gram: Gram is a metric unit of measurement for weight, symbolized as 'g'. It is used for measuring small and lightweight objects, such as food items, small animals, or everyday objects.

- Kilogram: Kilogram is also a metric unit of measurement for weight, symbolized as 'kg'. It is commonly used for measuring heavier objects, such as human body weight, large animals, or bulk quantities of goods like sacks of rice.

Conclusion:
Based on the analysis, we can conclude that statement A is incorrect, as gram is not typically used to measure the weight of a lion. However, statement B is correct, as kilogram is commonly used to measure the weight of a sack of rice. Therefore, the correct answer is option 'A' - Statement A is wrong, and Statement B is right.

Explanation:

To understand why option 'C' (2kg) is the correct answer, we need to have a basic understanding of how a balance works.

A balance is a device used to compare the weights of two objects. It consists of a beam that is supported at its center and has two pans or trays suspended from it. When the weights on both sides of the balance are equal, the beam remains horizontal. However, if the weight on one side is greater than the weight on the other side, the beam will tilt towards the side with the greater weight.

In this scenario, we have a weight of 1kg on one side of the balance. To make the balance go down, we need to add weight to the other side. Let's analyze the given options:

a) 25g: This is a very small weight compared to 1kg. It will not be enough to make the balance go down.

b) 500g: This weight is halfway between 1kg and 2kg. It is possible that adding this weight could make the balance go down, but it is not guaranteed.

2kg: This weight is twice the weight on the other side (1kg). According to the principle of a balance, adding a weight that is twice the weight on the other side will definitely make the balance go down.

d) 60g: This is a relatively small weight compared to 1kg. It will not be enough to make the balance go down.

Based on the analysis above, option 'C' (2kg) is the correct answer. Adding a weight of 2kg to the other side of the balance will make it go down.