AS Level Physics Notes Questions & Answers PDF Download - 4

An instrument commonly used for the measurement of atmospheric pressure is known as

1. Manometer
2. Barometer
3. Calorimeter
4. Potentiometer

Phase difference between a node and an antinode is

1. 90°
2. 45°
3. 180°
4. 360°

Our weight, as measured by the spring weighing machine is equivalent of

1. The total gravitational force that Earth exerts on us
2. The total centripetal force required to keep us moving on Earth's axis
3. The total gravitational force that Earth exerts on us + The total centripetal force required to keep us moving on Earth's axis
4. The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Point where spring oscillates with maximum amplitude is called

1. node
2. antinode
3. fixed end
4. movable end

According to Newton's law of universal gravitation, any two particles of finite mass attract one another with a force which is

1. Inversely proportional to the product of their masses and directly proportional to the square of their distance apart
2. Inversely proportional to the product of their masses and directly proportional to their distance apart
3. Directly proportional to the product of their masses and inversely proportional to their distance apart
4. Directly proportional to the product of their masses and inversely proportional to the square of their distance apart