Forces and Pressure in Physics
Test your knowledge of physics concepts including forces, pressure, thrust, weight, and motion
Questions
While scuba diving, a girl notices air bubbles underwater. She observes that the size of a bubble is small when it is deep underwater. But the size increases as it moves upwards. What could be the reason behind the increase in size of the bubble?
- More air enters into the bubbles from top
- Due to friction
- Due to gravity
- Due to decrease in pressure applied by water on air bubbles
- Due to dissolved oxygen more at the surface
Force acting on a surface in a direction perpendicular to it is called __________.
- frequency
- fluid pressure
- thrust
- ampere
- magnetism
Which of the following is the name of a device used for measuring fluid pressure?
- Stethoscope
- Odometer
- Manometer
- Seismograph
- Speedometer
The force by which an object is attracted towards the Earth is its __________.
- contact force
- frictional force
- resistance
- weight
- thrust
A boy was travelling for the first time in an aeroplane. As the flight took off from the airport, he got an uneasy feeling. He felt that some pressure changes had occurred. What forces were acting on the aeroplane immediately after it took off?
- Magnetism and muscular force
- Gravity and friction of air
- Electrostatic force and magnetism
- Magnetism and mechanical force
- Friction of fuel and muscular force