Explanation

Mass is a measure of an object's inertia — its resistance to changes in motion.

Unlike weight (which depends on gravity), mass is an intrinsic property and directly related to inertia.

Explanation

Explanation

For most metals, the temperature coefficient of resistance is positive, meaning that as the temperature increases, the resistance of the metal also increases.

This behavior occurs because, at higher temperatures, the metal atoms vibrate more, leading to more collisions with the electrons flowing through the material, which increases resistance.

Thus, the temperature coefficient of resistance for metals is positive.

Explanation

The Swinburne's Test is used for a no-load test on a DC motor.

It helps determine the motor's losses and efficiency under no-load conditions.

Explanation

• Scientists who forecast weather by continuously tracking and predicting the path of tornadoes, hurricanes, or floods are called Meteorologists.
• Meteorologists use computer models, satellite data, and other tools to predict weather patterns and warn people of severe weather events.
• It helping to protect lives and property.

Explanation

• Physical quantities are attributes of the physical world, such as length, mass, time, temperature, and energy, that can be measured and quantified.
• Examples of physical quantities include the height of a building, the speed of a car, and the voltage of a battery.

Explanation

• Cats have a unique audible range that is adapted to their hunting and communication needs.
• They can hear sounds in the range of 45 Hz to 64,000 Hz, which is wider than humans and dogs.

Explanation

• The flash of light from lightning is a form of electromagnetic radiation, and as such, it travels at the speed of light.
• It is denoted by the letter c.

It is equal to:

• 3 x 10^8 meters per second (m/s) in scientific notation
• 300,000 kilometers per second (km/s) in metric units
• 186,282 miles per second (mi/s) in imperial units

Explanation

The capacitance  𝐶 is defined as the charge  𝑄 stored per unit voltage  𝑉 

Mathematically, it's represented as:

𝐶 =𝑄/𝑉

So, 1 farad (F) is equal to 1 coulomb (C) per volt (V), but the equation doesn't imply that 

1C=1V.

Instead, it means that a capacitor has a capacitance of 1 farad if it can store 1 coulomb of charge when a voltage of 1 volt is applied across it.

Explanation

• The revolution of the Earth around the Sun causes the changing seasons, including Summer and Winter.
• As the Earth's axis is tilted and different parts of the planet receive varying amounts of sunlight throughout the year.