Acceleration of Free Fall Notes Questions with Answers PDF Download – Test 27

MCQ 131: The effect of an opposing force to the motion is known as:

1. resultant force
2. gravity
3. energy
4. air resistance

MCQ 132: The SI unit of frequency is:

1. ohm
2. seconds
3. meter
4. hertz

MCQ 133: The gravitational force acting per unit mass on the object is known as:

1. gravitational field strength
2. gravitational field weakness
3. Earth's power
4. stress

MCQ 134: A jet of steam at 150 °C is directed at a large block of ice for some time at 0 °C. Some steam condenses to form water and some ice is melted. The condensed steam forms 0.6 kg of water at 0 °C. The specific latent heat of water is 2200 kJ kg^-1. What is the thermal energy given out by this mass of steam in changing to water at 100 °C?

1. 1320 kJ
2. 1150 Kj
3. 2020 kJ
4. 3666 kJ

MCQ 135: Sound waves and pushing and pulling a Slinky are the examples of:

1. mechanical waves
2. electromagnetic waves
3. transverse waves
4. longitudinal waves