Physics X ICT AP

what is the formula for momentum?

• p = mv

• p = ma

• p = m/v

• p = m + v

if the mass of an object doubles while its velocity remains the same, its momentum will:

• remain the same

• double

• be halved

• become zero

a car of mass 1000 kg is moving at 20 m/s. what is its momentum?

• 20 000kg m/s

• 50 000kg m/s

• 100g m/s

• 200mg km/s

if an object comes to rest, its final momentum is

which of the following is an example of a longitudinal wave?

• light wave

• water wave

• sound wave

• radio wave

what property of wave determines its loudness?

• frequency

• wavelength

• amplitude

• speed

if the speed of a wave is 300 m/s and its frequency is 150 Hz, what is its wavelength?

• 0.5 m

• 2 m

• 450 m

• 160 m

which type of wave does not require a medium to travel?

what is the SI unit of electric current?

• volts

• ampere

• ohms

• none of the above

which of the following materials is a good conductor of electricity?

• rubber

• copper

• wood

• glass