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

• 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

• Sand does not dissolve in water.
• Unlike sugar, glucose, and salt, which are all soluble in water.

Explanation

• Camels have a special water storage space in their humps, which store fatty tissue.
• When food and water are scarce, the camel's body metabolizes the fatty tissue in the hump, providing energy and water.
• This allows camels to survive for extended periods without water.

Explanation

	=	frequency
	=	period

Explanation

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

These poles determine the direction of the magnetic field.