Physics Numericals MCQs With Answers

25 Questions | By Alfredhook3 | Updated: Mar 22, 2022 | Attempts: 559

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Physics Numericals MCQs With Answers - Quiz

This is a physics numerical multiple-choice questions (MCQs) quiz with answers. This quiz consists of numerical questions from diverse physics topics, including distance, displacement, kinetic energy, and gravitational force. So, if you think you can solve these questions, you should definitely play this quiz. Also, this quiz will tell you how much practice do you need more in a particular topic. The questions become tougher after each step. So, all the very best.

Questions and Answers

1.

During nuclear decay, a new isotope is created. How is the nucleus of the new isotope different from the parent if the parent isotope has undergone beta decay?
- A.
  
  The atomic number increases by 4 and the mass increases by 2.
- B.
  
  The atomic number increases by 2 and the mass decreases by 4.
- C.
  
  The atomic number increases by 1 and the mass remains the same.
- D.
  
  The atomic number remains the same and the mass decreases by 1.
2.

Which statement is true regarding the relationship between distance and displacement?
- A.
  
  Distance and displacement are always equal.
- B.
  
  Distance is always different than displacement.
- C.
  
  Distance is always less than or equal to displacement.
- D.
  
  Distance is always greater than or equal to displacement.
3.

The calculation of kinetic energy uses the formula, KE = 1 2 mv2. Identify the unit that is required for mass and velocity, respectively, to determine the kinetic energy in Joules.
- A.
  
  Mass in g, velocity in m s
- B.
  
  Mass in kg, velocity in m s
- C.
  
  Mass in g, velocity in km hr
- D.
  
  Mass in kg, velocity in km hr
4.

If F = force, which equation illustrates the Law of Conservation of Momentum?
- A.
  
  F1 = F2
- B.
  
  F1 = -F2
- C.
  
  -F1 = -F2
- D.
  
  F1 + - F2 = F3
5.

Consider the free body diagram. If the sum of the tension forces is equal to the force of gravity, which description BEST applies?
- A.
  
  A book is at rest on a tabletop.
- B.
  
  A physics student rests a backpack upon one shoulder.
- C.
  
  A girl falls slowly to Earth while strapped to a parachute.
- D.
  
  A girl hangs by both hands, motionless, from a trapeze.
- E.
  
  A girl hangs by both hands, motionless, from a trapeze.
6.

Describe how resistance affects the flow of current in a circuit.
- A.
  
  Efficiency of a circuit is dependent on decreasing the resistivity of the material.
- B.
  
  Current in the circuit increases with increasing of the innate resistivity of the material.
- C.
  
  Flow of electrons within the wire is increased by reducing the resistance by using a longer wire.
- D.
  
  The flow of current in a circuit is reduced by resistance from collisions of the electrons within the wire.
7.

The change in electric potential energy per unit charge is
- A.
  
  Amperes
- B.
  
  Current
- C.
  
  Gravity
- D.
  
  Voltage
8.

Most radiation is released as particles. Identify the type radiation that is not a particle.
- A.
  
  Alpha
- B.
  
  Beta
- C.
  
  Gamma
- D.
  
  Positron
9.

Which student correctly identifies a similarity and a difference between vector quantities and scalar quantities?
- A.
  
  Binyam
- B.
  
  Carlita
- C.
  
  Dante
10.

A 10.0 kilogram mass of iron on earth exerts a downward force of 98 Newtons. On the moon this same 10.0 kilograms of iron is weighed and found to exert a downward force of 16.3 Newtons. How is this possible? The gravity on the moon is one sixth the gravity of Earth.
- A.
  
  The earth is farther away reducing the pull.
- B.
  
  Weight is the same everywhere, but mass changes.
- C.
  
  Mass begins to evaporate in the vacuum of space.
- D.
  
  The gravity on the moon is one sixth the gravity of Earth.
11.

You are sitting in a car that isn't moving; suddenly, the car quickly accelerates. Your body seems to be pushed back against the seat. Which word best explains why your body seemed to be pushed backward against the seat?
- A.
  
  Newton
- B.
  
  Vector
- C.
  
  Inertia
- D.
  
  Gravity
12.

Mutt and Jeff are running along a path each pushing a cart loaded with rocks. If Mutt's wagon has a mass two times greater than Jeff's and they want to stay together, arriving at their destination at the same time, what must happen?
- A.
  
  Jeff should slow down, so Mutt can catch up.
- B.
  
  Mutt must use half as much force to push his car.
- C.
  
  Mutt must use twice as much force to push his cart.
- D.
  
  Mutt and Jeff will use the same force, but Mutt will take bigger steps.
13.

The gravitational force between Earth and the Sun is a two-way force. Both the planet and the Sun attract each other. However, Earth revolves around the Sun rather than the Sun revolving around Earth. Which statement BEST explains the orbit of the Earth around the Sun?
- A.
  
  The Sun is at the center of the Solar System.
- B.
  
  The Sun’s mass is much greater than Earth’s.
- C.
  
  Earth rotates about its axis, but the Sun does not.
14.

A 16N force is applied to an object and 96J of work is done. How far was the object moved?
- A.
  
  6 meters
- B.
  
  16 meters
- C.
  
  80 meters
- D.
  
  1536 meters
15.

A 0.5kg ball of clay originally moving at 6 m/s strikes a wall and comes to rest in 0.25s, what is the magnitude of the impulse given to the ball of clay?
- A.
  
  0.75 kg m/s
- B.
  
  1.5 kg m/s
- C.
  
  3.0 kg m/s
- D.
  
  12 kg m/s
16.

As you tune your radio to a higher frequency, from 88.5 FM to 103.3 FM, the wavelength of the wave that you are tuning in
- A.
  
  increases
- B.
  
  Decreases
- C.
  
  Stays the same
17.

Using your knowledge of the properties of the different states of matter, determine which state of matter would travel the fastest.
- A.
  
  Liquid carbon dioxide
- B.
  
  Gaseous carbon dioxide
- C.
  
  Dry ice – solid carbon dioxide
- D.
  
  None – sound travels at a constant rate
18.

What is the voltage of a battery that powers a light with 0.43 A and has a resistance of 3.5 ohms?
- A.
  
  1.505 V
- B.
  
  3.07 V
- C.
  
  3.93 V
- D.
  
  8.13 V
19.

What is the approximate equivalent resistance between points A and D?
- A.
  
  320 Ω
- B.
  
  410 Ω
- C.
  
  1.1 Ω
- D.
  
  1.8 Ω
20.

There are three ways to give an object a static charge. They are friction, conduction, and induction. Two pieces of cellophane tape are stuck to a lab table. Each piece is quickly ripped off the table. What prediction would you make about what happens when the two pieces of tape are brought near one another?
- A.
  
  Nothing will happen. The tape only sticks when you touch the adhesive.
- B.
  
  The two pieces of tape will repel as both have obtained a static charge.
- C.
  
  The two pieces of tape will attract as both have obtained a static charge.
- D.
  
  The two pieces will cling to each other as a sock clings when it is removed from a clothes dryer.
21.

What generates the magnetic field that surrounds a wire carrying an electric current?
- A.
  
  Compasses placed near a long straight current-carrying wire indicate that field lines form circular loops centered on the wire.
- B.
  
  Compasses placed near a short straight current-carrying wire indicate that field lines form circular loops centered on the wire.
- C.
  
  Compasses placed near a short curved current-carrying wire indicate that field lines form circular loops centered on the wire.
- D.
  
  Compasses placed near a long straight current-carrying wire indicate that electric current form circular loops centered on the wire.
22.

750 million years ago, there was enough Uranium-235 present in Oklo, Gabon to have a natural fission reaction occur and generate a chain reaction. If there is currently 50kg of U-235 present in Oklo, how much must have been present 750 million years ago when the reaction took place?
- A.
  
  50 kg
- B.
  
  100 kg
- C.
  
  200 kg
- D.
  
  375 kg
23.

Alpha radiation is another type of radiation. Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus. They have much less energy than either beta particles of gamma waves. Suppose a Geiger counter was placed 10 cm from an alpha emitter, and clicks were recorded for three minutes. Based on the recorded data, predict the number of clicks you would detect on the far side of the aluminum shield.
- A.
  
  0 clicks
- B.
  
  2 clicks
- C.
  
  5 clicks
- D.
  
  10 clicks
24.

While texting his girlfriend that he was running late for their date, Jordan rear-ended a car stopped at a red light. Since this was clearly an inelastic collision, some of his car's kinetic energy was transformed to other types of energy. What types of energy are most likely to result from such a collision?
- A.
  
  Thermal and potential
- B.
  
  Thermal and mechanical
- C.
  
  Chemical and potential
- D.
  
  Mechanical and chemical
25.

The calculation of kinetic energy uses the formula, KE = ½ mv2. Identify the unit that is required for mass and velocity, respectively, to determine the kinetic energy in Joules
- A.
  
  Mass in g, velocity in m/s
- B.
  
  Mass in kg, velocity in s
- C.
  
  Mass in kg, velocity in m/s
- D.
  
  Mass in g, velocity in s