Physics Concepts and Applications Quiz

A car is moving with a constant velocity of 20 m/s. According to Newton's First Law, what will happen to the car if no external force is applied?

• The car will stop immediately.

• The car will continue moving at 20 m/s.

• The car will accelerate.

• The car will move in the opposite direction.

A 5 kg object is subjected to a net force of 15 N. What is the acceleration of the object according to Newton's Second Law?

• 1 m/s²

• 2 m/s²

• 3 m/s²

• 4 m/s²

• 5.1 m

• 6.2 m

• 7.3 m

• 8.4 m

Which of the following is an example of energy conservation?

• A car engine converting chemical energy to kinetic energy.

• A light bulb converting electrical energy to light energy.

• A pendulum swinging back and forth without losing energy.

• All of the above.

• 98 J

• 196 J

• 294 J

• 392 J

A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?

• 50 m/s

• 100 m/s

• 150 m/s

• 200 m/s

Which of the following statements about waves is true?

• Waves transfer matter from one place to another.

• Waves transfer energy without transferring matter.

• Waves do not transfer energy.

• Waves transfer both energy and matter.

A sound wave travels through air at a speed of 340 m/s. If the frequency of the wave is 170 Hz, what is its wavelength?

• 1 m

• 2 m

• 3 m

• 4 m

In a series circuit, if one of the bulbs burns out, what happens to the other bulbs?

• They will continue to glow.

• They will glow brighter.

• They will go out.

• They will flicker.

What is the total resistance in a series circuit with three resistors of 2 Ω, 3 Ω, and 5 Ω?

• 5 Ω

• 8 Ω

• 10 Ω

• 15 Ω