Physics basics: measurement motion force pressure and energy. - Question Bank

1. What is the SI unit of electric current?
A) Volt
B) Ohm
C) Ampere
D) Watt
2. The rate of flow of electric charge is called:
A) Voltage
B) Resistance
C) Current
D) Power
3. Which of the following is a device that converts chemical energy into electrical energy?
A) Electric motor
B) Generator
C) Battery
D) Light bulb
4. If you push a wall with a force of 50 N, but the wall does not move, the work done by you on the wall is:
A) 50 Joules
B) Zero Joules
C) Infinite Joules
D) Cannot be determined
5. What is work done in physics?
A) Force multiplied by velocity
B) Force multiplied by displacement in the direction of the force
C) Mass multiplied by acceleration
D) Energy divided by time
6. Which type of friction is the strongest: static, kinetic, or rolling?
A) Kinetic friction
B) Rolling friction
C) Static friction
D) All are equal
7. Friction is generally:
A) A force that helps motion
B) A force that opposes motion
C) A force that is independent of surfaces in contact
D) A force that always increases with speed
8. Which force opposes motion between surfaces in contact?
A) Normal force
B) Applied force
C) Frictional force
D) Gravitational force
9. Which of the following is NOT a unit of energy?
A) Joule
B) Calorie
C) Watt-hour
D) Newton-meter
10. If a machine does 100 Joules of work in 10 seconds, what is its power?
A) 1 Watt
B) 10 Watts
C) 100 Watts
D) 1000 Watts
11. Power is defined as:
A) Energy per unit time
B) Work done per unit distance
C) Force per unit area
D) Velocity per unit time
12. What is the SI unit of power?
A) Joule
B) Watt
C) Newton
D) Ampere
13. Which of the following is a form of energy transformation?
A) A car moving at constant speed
B) A light bulb converting electrical energy to light and heat energy
C) A book resting on a table
D) Water flowing downhill
14. What is the principle of conservation of energy?
A) Energy can be created but not destroyed
B) Energy can be destroyed but not created
C) Energy can neither be created nor destroyed, only transformed
D) Energy is always lost in transformations
15. When a spring is compressed or stretched, it stores:
A) Kinetic energy
B) Gravitational potential energy
C) Elastic potential energy
D) Chemical energy
16. What is the potential energy of an object of mass 'm' at a height 'h' above the ground?
A) mgh
B) 1/2 mv²
C) mg/h
D) m+g+h
17. Which type of energy is stored energy due to position or configuration?
A) Kinetic energy
B) Thermal energy
C) Potential energy
D) Electrical energy
18. A 2 kg object is moving at 4 m/s. What is its kinetic energy?
A) 4 Joules
B) 8 Joules
C) 16 Joules
D) 32 Joules
19. What is the formula for kinetic energy?
A) mgh
B) mv
C) 1/2 mv²
D) m/v
20. Which type of energy is associated with the motion of an object?
A) Potential energy
B) Chemical energy
C) Kinetic energy
D) Thermal energy
21. What is the SI unit of energy?
A) Watt
B) Newton
C) Joule
D) Pascal
22. What is energy?
A) The rate at which work is done
B) The ability to do work
C) The force applied per unit area
D) The product of mass and velocity
23. Which of the following exerts more pressure on the ground?
A) A person standing on two feet
B) A person standing on one foot
C) A person lying down
D) A person sitting down
24. Why do nails have sharp points?
A) To increase the surface area
B) To decrease the force applied
C) To increase the pressure exerted for a given force
D) To make them easier to hold
25. Atmospheric pressure is measured using a:
A) Thermometer
B) Barometer
C) Manometer
D) Anemometer
26. What is the SI unit of pressure?
A) Joule per square meter
B) Newton per meter
C) Pascal
D) Watt per meter
27. What is pressure?
A) Force applied per unit volume
B) Force applied per unit area
C) Energy per unit time
D) Work done per unit distance
28. What is the SI unit of momentum?
A) kg m/s
B) N s
C) kg m/s²
D) Joule
29. What is momentum?
A) The product of mass and velocity
B) The product of force and time
C) The rate of change of velocity
D) The energy possessed by an object due to its motion
30. Which of the following is an example of Newton's third law?
A) A book resting on a table
B) A car moving at a constant speed
C) A rocket expelling gas downwards to move upwards
D) A ball rolling down a slope
31. Newton's third law of motion states that:
A) For every action, there is an equal and opposite reaction
B) The rate of change of momentum is proportional to the applied force
C) An object at rest stays at rest unless acted upon by a force
D) The product of mass and velocity is constant
32. If a force of 10 N acts on a mass of 5 kg, what is the acceleration produced?
A) 0.5 m/s²
B) 2 m/s²
C) 5 m/s²
D) 50 m/s²
33. What is the SI unit of force?
A) Joule
B) Watt
C) Pascal
D) Newton
34. The formula for Newton's second law of motion is:
A) F = m/a
B) F = a/m
C) F = ma
D) F = m + a
35. Newton's second law of motion relates:
A) Force, mass, and acceleration
B) Inertia and mass
C) Action and reaction forces
D) Momentum and time
36. What is inertia?
A) The tendency of an object to resist changes in its state of motion
B) The force acting on an object
C) The rate of change of velocity
D) The product of mass and velocity
37. Newton's first law of motion is also known as the law of:
A) Momentum
B) Acceleration
C) Inertia
D) Action and Reaction
38. A car starts from rest and accelerates at 2 m/s² for 10 seconds. What is its final velocity?
A) 5 m/s
B) 10 m/s
C) 20 m/s
D) 100 m/s
39. What is the SI unit of acceleration?
A) m/s
B) m/s²
C) kg m/s
D) N
40. What is acceleration?
A) The rate of change of speed
B) The rate of change of distance
C) The rate of change of velocity
D) The total distance traveled
41. When is the speed of an object equal to its velocity?
A) When the object is moving in a circular path
B) When the object is moving in a straight line without changing direction
C) When the object is accelerating
D) When the object is at rest
42. What is displacement?
A) The total distance covered by an object
B) The shortest distance between the initial and final position of an object
C) The rate of change of distance
D) The magnitude of velocity
43. If an object travels 10 meters in 5 seconds, what is its speed?
A) 0.5 m/s
B) 2 m/s
C) 5 m/s
D) 50 m/s
44. What is the definition of speed?
A) Rate of change of displacement
B) Rate of change of distance
C) Rate of change of acceleration
D) Rate of change of velocity
45. Which instrument is commonly used to measure length with high precision?
A) Thermometer
B) Barometer
C) Measuring tape
D) Vernier caliper
46. What is the SI unit of time?
A) Minute
B) Hour
C) Second
D) Day
47. What is the SI unit of mass?
A) Gram
B) Kilogram
C) Milligram
D) Tonne
48. Which of the following is a vector quantity?
A) Mass
B) Time
C) Distance
D) Displacement
49. Which of the following is a scalar quantity?
A) Velocity
B) Force
C) Speed
D) Acceleration
50. What does the acronym SI stand for in the context of measurement units?
A) System International
B) Standard International
C) Scientific International
D) System of Interconnection
All Question Banks
E-Book Physics basics: measurement motion force pressure and energy. One Line Questions Physics basics: measurement motion force pressure and energy. Online Test Physics basics: measurement motion force pressure and energy.