Question 1

A car accelerates from rest at a constant rate of $$2 \ \mathrm{m/s^2$}$$ for $$5$$ seconds. What is its final velocity?

Accepted Answer

$$10 \ \mathrm{m/s}$$

Question 2

Which of the following best describes Newton's Third Law of Motion?

Accepted Answer

For every action, there is an equal and opposite reaction.

Question 3

A $$0.5 \ \mathrm{kg}$$ ball is dropped from a height of $$10 \ \mathrm{m}. $$Ignoring air resistance, what is its velocity just before hitting the ground? (Use $$g = 9.8 \ \mathrm{m/s^2$})$$

Accepted Answer

$$14 \ \mathrm{m/s}$$

Question 4

Which of the following is a correct statement about mechanical waves?

Accepted Answer

Mechanical waves require a medium to propagate.

Question 5

A $$3 \ \mathrm{kg}$$ object is moving at $$4 \ \mathrm{m/s}. $$What is its kinetic energy?

Accepted Answer

$$48 \ \mathrm{J}$$

Question 6

Which of the following scenarios best illustrates the law of conservation of energy?

Accepted Answer

A ball thrown upward slows down as it rises, then speeds up as it falls, with its total energy remaining constant.

Question 7

A $$5 \ \mathrm{kg}$$ box is pushed with a force of $$20 \ \mathrm{N}$$ across a frictionless surface. What is its acceleration?

Accepted Answer

$$4 \ \mathrm{m/s^2$}$$

Question 8

Which of the following is true about electromagnetic induction?

Accepted Answer

A changing magnetic field can induce a current in a conductor.

Question 9

A sound wave travels at $$340 \ \mathrm{m/s} in $$air. If its frequency is $$1700 \ \mathrm{Hz}$$, what is its wavelength?

Accepted Answer

$$0.2 \ \mathrm{m}$$

Question 10

Which of the following best explains why light waves can travel through space but sound waves cannot?

Accepted Answer

Light waves are electromagnetic and do not require a medium.

Question 11

A $$2 \ \mathrm{kg}$$ mass is attached to a spring and oscillates with a period of $$0.5 \ \mathrm{s}. $$What is the frequency of oscillation?

Accepted Answer

$$2 \ \mathrm{Hz}$$

Question 12

Which of the following is NOT a property of waves?

Accepted Answer

Mass

Question 13

A $$10 \ \mathrm{kg}$$ object is lifted $$2 \ \mathrm{m}$$ above the ground. What is its gravitational potential energy? (Use $$g = 9.8 \ \mathrm{m/s^2$})$$

Accepted Answer

$$196 \ \mathrm{J}$$

Question 14

Which of the following best describes the Doppler effect?

Accepted Answer

A change in frequency or wavelength of a wave in relation to an observer moving relative to the source.

Question 15

A $$1 \ \mathrm{kg}$$ block slides down a frictionless incline from a height of $$5 \ \mathrm{m}. $$What is its speed at the bottom?

Accepted Answer

$$9.9 \ \mathrm{m/s}$$

Question 16

Which of the following is an example of refraction?

Accepted Answer

A straw appears bent when placed in a glass of water.

Question 17

A $$0.2 \ \mathrm{kg}$$ object moving at $$3 \ \mathrm{m/s}$$ collides with a stationary $$0.3 \ \mathrm{kg}$$ object. If they stick together after the collision, what is their final velocity?

Accepted Answer

$$1.2 \ \mathrm{m/s}$$

Question 18

Which of the following best describes the difference between transverse and longitudinal waves?

Accepted Answer

Transverse waves oscillate perpendicular to the direction of propagation, while longitudinal waves oscillate parallel.

Question 19

A $$0.5 \ \mathrm{kg}$$ mass is attached to a string and swung in a circle of radius $$2 \ \mathrm{m} at a $$speed of $$4 \ \mathrm{m/s}. $$What is the centripetal force acting on the mass?

Accepted Answer

$$8 \ \mathrm{N}$$

Question 20

Which of the following is a real-world application of electromagnetic induction?

Accepted Answer

Electric generators converting mechanical energy to electrical energy.

Mrs. Karmy's Physics Syllabus (2025-2026): Course Structure and Policies

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드