1.2 - (3-6) Magnetic, Optical, Waves&Sound, Other Equipments

• Compass

• Magnet

Magnetic Equipments:

Compass

An instrument that shows the direction.

North-South

The compass rose, or the needle, points the ______ direction.

Magnet

This material, which has two poles called North and South poles, produces a magnetic field that exerts a force.

magnetic force

The force is called ________

Magnetic force

_________ pulls on other ferromagnetic materials and attracts/repels other magnets

• Lens

• Mirror

Optical equipments:

Lens

An optical device that focuses or disperses a light beam through refraction.

curvature

The lens can focus light to form an image, and these are classified by the _______ of the optical surfaces.

Mirror

An object that reflects light in such a way that the reflected light preserves most of the detailed physical characteristics of the original light.

• Tuning Fork

• Resonance Apparatus

Waves & Sound related equipment:

Tuning Fork

A two-pronged fork with the prongs, made with elastic metal, formed in a U-shaped.

Tuning Fork

When striking these against a surface, it resonates at a specific constant pitch.

Resonance Apparatus

This is used to locate resonance positions in air columns.

Resonance Apparatus

•These resonance positions help in calculating the speed of sound using the water level and frequency of the tuning fork used.

• Thermometer

• Density Ball

• Calorimeter

Other Equipments:

Thermometer

•A device that measures the temperature of an object.

•It has temperature sensor that expands with a change in temperature and a scale that convert this into a numerical value.

Density Ball

This study the effect of temperature on the density of a liquid.

Density Ball

This counterweighted copper ball will float in cold water and will sink in hot water because of the subtle variation in water density

Calorimeter

A device for measuring the heat developed during a mechanical, electrical, or chemical reaction and for calculating the heat capacity of materials.