[Examination 4] Physics for Engineers

If the forces acting on a falling body balance one another, the body continues to fall at a constant velocity. What is thus constant velocity called?

• Instantaneous velocity
• Free-falling body
• Gravitational velocity
• Terminal velocity

The first law of motion is also known as

• Law of acceleration
• Law of inertia
• Law of interaction
• Law of momentum

The second law of motion is also known as

• Law of acceleration
• Law of inertia
• Law of interaction
• Law of momentum

The third law of motion is also known as

• Law of acceleration
• Law of inertia
• Law of interaction
• Law of momentum

Air exerts force that is opposite to the car's motion. What is this force called?

• Reverse effective force
• Terminal force
• Drag force
• Aerodynamic force

What instrument is used to measure blood. pressure of human beings?

• Stropomanometer
• Pumpmanometer
• Electromanometer
• Sphygmomanometer

What do light, radiowaves, microwaves and X-rays have in common?

• These waves were predicted by only one person, James Maxwell
• These do not need a medium to travel in
• These waves are all mechanical waves
• These waves are all serendipitous discoveries.

Who predicted the existence of electromagnetic waves in 1865?

• Roentgen
• Maxwell
• Testa
• Doppler

What is the velocity of light in meters per second?

• 3 x 10^6
• 3 x 10^9
• 3x10^7
• 3 x 10^8

What is the sound level of the threshold of pain?

• 100 dB
• 110 dB
• 120 dB
• 130 dB