In this problem, you are measuring the length of a knitting needle by reading the scale at both ends. To find the length of the needle, you subtract the smaller reading from the larger reading. Given: Reading at one end = 3.0 cm Reading at the other end = 33.1 cm To calculate the length of the needlRead more
In this problem, you are measuring the length of a knitting needle by reading the scale at both ends. To find the length of the needle, you subtract the smaller reading from the larger reading.
Given:
Reading at one end = 3.0 cm
Reading at the other end = 33.1 cm
To calculate the length of the needle, use the formula:
Length of the needle = Reading at the other end – Reading at one end
Substitute the given values into the formula:
Length of the needle = 33.1 cm – 3.0 cm
Length of the needle = 30.1 cm
Therefore, the length of the knitting needle is 30.1 centimeters.
Both a bicycle's wheels and a ceiling fan's blades move in circular motions. However, a bicycle requires a rider's force to move forward, while a fan relies on electricity to rotate. The bicycle is for transportation, needing a surface to move, while the ceiling fan remains fixed, used for circulatiRead more
Both a bicycle’s wheels and a ceiling fan’s blades move in circular motions. However, a bicycle requires a rider’s force to move forward, while a fan relies on electricity to rotate. The bicycle is for transportation, needing a surface to move, while the ceiling fan remains fixed, used for circulating air in a room.
An elastic measuring tape stretches, causing measurement inaccuracies. It leads to unreliable and imprecise distance measures. Explaining measured distances becomes difficult due to the tape's inconsistent stretching, making it hard to convey precise and reliable information about the distance measuRead more
An elastic measuring tape stretches, causing measurement inaccuracies. It leads to unreliable and imprecise distance measures. Explaining measured distances becomes difficult due to the tape’s inconsistent stretching, making it hard to convey precise and reliable information about the distance measured.
Examples of periodic motion: 1. Pendulum: Swings back and forth regularly. 2. Spring-mass system: Object on a spring oscillates around a fixed point. These motions repeat in regular cycles, demonstrating periodicity by returning to their starting positions after a specific time or completing a patteRead more
Examples of periodic motion:
1. Pendulum: Swings back and forth regularly.
2. Spring-mass system: Object on a spring oscillates around a fixed point.
These motions repeat in regular cycles, demonstrating periodicity by returning to their starting positions after a specific time or completing a pattern.
Opaque materials (do not allow light to pass through): 1. Piece of rock 2. Sheet of aluminium 3. Mirror 4. Wooden board 5. CD 6. Piece of red hot iron 7. Umbrella 8. Wall 9. Sheet of carbon paper 10. Sheet of cardboard 11. Wire mesh 12. Kerosene stove Transparent materials (allow light to pass throuRead more
Opaque materials (do not allow light to pass through):
1. Piece of rock
2. Sheet of aluminium
3. Mirror
4. Wooden board
5. CD
6. Piece of red hot iron
7. Umbrella
8. Wall
9. Sheet of carbon paper
10. Sheet of cardboard
11. Wire mesh
12. Kerosene stove
Transparent materials (allow light to pass through clearly):
1. Air
2. Water
3. Sheet of plain glass
Translucent materials (allow some light but not a clear view):
1. Sheet of polythene
2. Smoke
3. Fog
4. Sheet of cellophane
Luminous materials (emit light):
1. Flame of a gas burner
2. Lighted fluorescent tube
3. Lighted torch
4. Sun
5. Firefly
Non-luminous materials (do not emit light):
1. All materials except those listed as luminous
This classification helps understand which materials allow light to pass through, whether they emit light, and the distinction between opaque, transparent, and translucent materials.
While measuring the length of a knitting needle, the reading of the scale at one end is 3.0 cm and at the other end is 33.1 cm. What is the length of the needle?
In this problem, you are measuring the length of a knitting needle by reading the scale at both ends. To find the length of the needle, you subtract the smaller reading from the larger reading. Given: Reading at one end = 3.0 cm Reading at the other end = 33.1 cm To calculate the length of the needlRead more
In this problem, you are measuring the length of a knitting needle by reading the scale at both ends. To find the length of the needle, you subtract the smaller reading from the larger reading.
Given:
Reading at one end = 3.0 cm
Reading at the other end = 33.1 cm
To calculate the length of the needle, use the formula:
Length of the needle = Reading at the other end – Reading at one end
Substitute the given values into the formula:
Length of the needle = 33.1 cm – 3.0 cm
Length of the needle = 30.1 cm
Therefore, the length of the knitting needle is 30.1 centimeters.
See lessWrite the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.
Both a bicycle's wheels and a ceiling fan's blades move in circular motions. However, a bicycle requires a rider's force to move forward, while a fan relies on electricity to rotate. The bicycle is for transportation, needing a surface to move, while the ceiling fan remains fixed, used for circulatiRead more
Both a bicycle’s wheels and a ceiling fan’s blades move in circular motions. However, a bicycle requires a rider’s force to move forward, while a fan relies on electricity to rotate. The bicycle is for transportation, needing a surface to move, while the ceiling fan remains fixed, used for circulating air in a room.
See lessWhy could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape?
An elastic measuring tape stretches, causing measurement inaccuracies. It leads to unreliable and imprecise distance measures. Explaining measured distances becomes difficult due to the tape's inconsistent stretching, making it hard to convey precise and reliable information about the distance measuRead more
An elastic measuring tape stretches, causing measurement inaccuracies. It leads to unreliable and imprecise distance measures. Explaining measured distances becomes difficult due to the tape’s inconsistent stretching, making it hard to convey precise and reliable information about the distance measured.
See lessGive two examples of periodic motion.
Examples of periodic motion: 1. Pendulum: Swings back and forth regularly. 2. Spring-mass system: Object on a spring oscillates around a fixed point. These motions repeat in regular cycles, demonstrating periodicity by returning to their starting positions after a specific time or completing a patteRead more
Examples of periodic motion:
See less1. Pendulum: Swings back and forth regularly.
2. Spring-mass system: Object on a spring oscillates around a fixed point.
These motions repeat in regular cycles, demonstrating periodicity by returning to their starting positions after a specific time or completing a pattern.
Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous: Air, water, a piece of rock, a sheet of aluminium, a mirror, a wooden board, a sheet of polythene, a CD, smoke, a sheet of plane glass, fog, a piece of red hot iron, an umbrella, a lighted fluorescent tube, a wall, a sheet of carbon paper, the flame of a gas burner, a sheet of cardboard, a lighted torch, a sheet of cellophane, a wire mesh, kerosene stove, sun, firefly, moon.
Opaque materials (do not allow light to pass through): 1. Piece of rock 2. Sheet of aluminium 3. Mirror 4. Wooden board 5. CD 6. Piece of red hot iron 7. Umbrella 8. Wall 9. Sheet of carbon paper 10. Sheet of cardboard 11. Wire mesh 12. Kerosene stove Transparent materials (allow light to pass throuRead more
Opaque materials (do not allow light to pass through):
1. Piece of rock
2. Sheet of aluminium
3. Mirror
4. Wooden board
5. CD
6. Piece of red hot iron
7. Umbrella
8. Wall
9. Sheet of carbon paper
10. Sheet of cardboard
11. Wire mesh
12. Kerosene stove
Transparent materials (allow light to pass through clearly):
1. Air
2. Water
3. Sheet of plain glass
Translucent materials (allow some light but not a clear view):
1. Sheet of polythene
2. Smoke
3. Fog
4. Sheet of cellophane
Luminous materials (emit light):
1. Flame of a gas burner
2. Lighted fluorescent tube
3. Lighted torch
4. Sun
5. Firefly
Non-luminous materials (do not emit light):
1. All materials except those listed as luminous
This classification helps understand which materials allow light to pass through, whether they emit light, and the distinction between opaque, transparent, and translucent materials.
See less