cat reviewer

What fundamental unit is used when measuring luminous intensity?

• Meter

• Ampere

• Candela

• Kelvin

Answer explanation

Length = Meter (m)

Mass = Kilogram (kg)

Time = Second (s)

Electric Current = Ampere (A)

Temperature = Kelvin (K)

Amount of Substance = Mole (mol)

Luminous Intensity = Candela (cd)

Which one is correctly matched?

• Number of protons = Number of electrons

• Number of protons = Atomic Number

• Number of protons = Number of neutrons

• Number of neutrons = Number of electrons

Answer explanation

ATOMIC PROPERTIES

Number of Protons = Atomic Number

Number of Neutrons = Mass Number - Atomic Number

Number of Electrons = Atomic Number + Charge

What is the standard unit of speed?

• m/s

• m/s²

• volts

• joules

Answer explanation

Speed/Velocity: m/s

Momentum: kgm/s

Voltage: volts

Acceleration: m/s²

Work/Energy: joules

Resistance: ohms

Power: watts

Force: N

Which one is correctly matched?

• 1g = 1oz

• 1 ton = 10 kg

• 1 kg = 2 lb

• 1 kg = 2.2 lb

Answer explanation

CONVERSION IN WEIGHT AND MASS

16 oz = 1 lb

1 kg = 2.2 lbs

454 g = 1 lb

1 ton = 2000 lbs

Which is correctly matched?

• 1 m = 20 inches

• 1 yard = 1 m

• 1 inch = 2.54 cm

• 1 inch = 10 cm

Answer explanation

LENGTH/DISTANCE CONVERSION

1 inch = 2.54 cm

1 mile = 5280 ft = 1.609 km

1 yard = 3 ft = 36 inches

1 meter = 39.37 inches = 3.28 ft

What is the SI unit of electric current?

• Ohm

• Ampere

• Watt

• Volt

Answer explanation

Length = Meter (m)

Mass = Kilogram (kg)

Time = Second (s)

Electric Current = Ampere (A)

Temperature = Kelvin (K)

Amount of Substance = Mole (mol)

Luminous Intensity = Candela (cd)

What is the standard unit of energy?

• Newton

• Joule

• Watt

• Ohm

Answer explanation

Speed/Velocity: m/s

Momentum: kgm/s

Voltage: volts

Acceleration: m/s²

Work/Energy: joules

Resistance: ohms

Power: watts

Force: N

• 1