Explanation

• The unit of acceleration is meter per second squared (m/s²)
• The Earth's gravitational field strength is 9.8 N/kg.
• This means that for each kg of mass, an object will experience 9.8 N of force.
• Gravity refers to acceleration due to gravity (g).

Explanation

• Non-luminous objects do not produce their own light; they are visible because they reflect light from other sources.
• The Moon is non-luminous; it reflects sunlight.
• Luminous objects like the Sun, stars, and fireflies produce their own light.

Last verified on 06-03-2026

Explanation

• A translucent object allows some light to travel through it, but scatters or absorbs some of the light, making it semi-transparent.
• Examples: Frosted glass, wax paper, and tissue paper.

Additional information:

• Transparent: Allows all light to pass through, providing a clear view. 
• Opaque: Does not allow any light to pass through.

Last verified on 06-03-2026

Explanation

• When an opaque object moves closer to the light source, the shadow becomes larger.
• This is because the light rays spread out more, increasing the shadow’s size.
• Opposite effect: Moving the object away from the light source makes the shadow smaller.

Last verified on 06-03-2026

Explanation

• A solar eclipse occurs when the Moon passes between the Sun and Earth, blocking sunlight.
  • It can be total, partial, or annular, depending on the alignment.
  • During a total solar eclipse, the day briefly becomes dark.

Last verified on 06-03-2026

Explanation

Explanation

Explanation

• Power = work done / time.
• Weight of body = force exerted by motor.
• Work = force × displacement in the direction of force.
• Time = duration of motion.

Explanation

Explanation