Physical Science Semester 1 Final Review

Front

The ___ is determined by the mass of an object and the velocity in which the object is moving.

Back

momentum

Front

How much time, in seconds, would it take a bus driver to accelerate a bus from rest at a rate of 0.7 m/s² to a speed of 6.1 m/s?

Back

8.7s

Front

If a red ball has a mass of 10kg and a velocity of 12m/s and a blue ball has a mass of 6kg, what is the velocity of the blue ball?

Back

20 m/s

Front

What is the relationship between wavelength and wave frequency?

Back

The shorter the wavelength, the higher the frequency.

Front

What is the frequency that a cordless telephone operates if the radio signal has a wavelength of 100km and EM waves travel at 300,000 km/s?

Back

3,000 Hz

Front

Felicia sends a 4-second signal from a satellite phone 40,000 km above Earth's surface, consisting of 200 wavelengths. What is the frequency of the signal?

Back

50 Hz

Front

Which of the following is the independent variable?

• acceleration
• time
• the slope of the line
• unicorns

Back

time

Front

Which wave causes the most damage?

Back

surface waves

Front

Why do surface waves cause the greatest damage during an earthquake?

Back

the waves cause the surface of the Earth to rise and fall

Front

Why do large birds need more momentum than small birds to take off and fly?

Back

They need more momentum to overcome their greater body weight.