Explanation

When an object is placed far away from a concave mirror, its image will be:

• Real (a projected image that can be seen on a screen)
• Inverted (upside down)
• Smaller in size than the object (reduced)

Explanation

• A car's steering system uses a wheel and axle.
• It is mechanism to transmit the rotational motion of the steering wheel to the wheels of the car, allowing the vehicle to turn.

Explanation

A magnetic bar has two poles: the North pole and the South pole.

These poles determine the direction of the magnetic field.

Explanation

• Friction forces between the air and a moving object cause resistance.
• Which slows down the object and converts some of its kinetic energy into heat.

Explanation

• The incorrect statement is: Particles are in loose clusters.
• In solids, particles are actually closely packed and arranged in a regular pattern, with minimal space between them.
• This is what gives solids their rigidity and structure.

Explanation

• Waste from the plastic industry is an example of non-biodegradable waste.
• As plastics are synthetic materials that are resistant to decomposition.
• It can take hundreds or thousands of years to break down.

Explanation

• The requirement for light during seed germination varies among plant species.
• Some seeds, like peas and beans, can germinate in darkness (skototropism).
• While others, like lettuce and petunia, require light (photoblastism) to break seed dormancy and initiate germination.
• This is because light can trigger the production of hormones and enzymes essential for germination.

Explanation

An inclined plane is a slanting surface connecting a lower level to a higher level.

It is a simple machine that helps to lift or move loads to a higher position, and is commonly used in:

• Ramps
• Staircases
• Slides
• Ski lifts
• Hilly roads

Explanation

Ammonia has a pH level of around 11-12, which is strongly alkaline (basic).

Explanation

The equation A+B → AB represents an addition reaction, where two substances (A and B) combine to form a new compound (AB).