Physics Quiz For Class 8
- Question of
Which force is being applied by a vendor when he is pushing the pushcart?
- Muscular force
- Magnetic force
- Friction
- Electrostatic force
- Question of
How much weight of air is always over your head?
- 1 kg
- 1000 kg
- 100 kg
- 10 kg
- Question of
Which force causes a charged balloon to attract another balloon?
- Muscular force
- Electrostatic force
- Magnetic force
- Gravitational force
- Question of
A dropper to fill ink works because of which of the following?
- Friction
- Magnetic force
- Air pressure
- Electrostatic force
- Question of
The force acting on a unit area on an object
- contact force
- non contact force
- pressure
- density
- density
- Question of
It is easier to cut vegetables with sharp end of knife rather than with its blunt end because
- Smaller area provides more pressure for the applied force
- smaller area provides less pressure for the applied force.
- Both
- none of the above
- Question of
Two tyres of a tractor are very wide and huge because
- pressure increase when area increases
- pressure reduces when area increases
- Both
- none of the above
- Question of
SI unit of Speed is
- Kilometer
- meter
- meter/second
- second
- Question of
Which of the following appliances does not use an electromagnet?
- Electric heater
- Electric bell
- Bulb
- Torch
- Question of
A fuse wire is made up of alloy
- Nichrome
- Tin-lead
- Magnanin
- Constantan
- Question of
Which of the following statements is incorrect?
- Thermometer is read by holding its bulb.
- A few sharp jerks are given to clinical thermometer before using it.
- The black fabric tent is preferred during winter.
- None of the above
- Question of
Which of the following conditions enables heat to flow from one body to another identical body?
- The difference in the pressures exerted on the two bodies
- The difference in the temperatures of the two bodies
- The difference in the densities of the two bodies
- The difference in the sizes of the two bodies
- Question of
Motion of bob of a simple pendulum shows:
- rectilinear motion
- periodic motion
- circular motion
- vibratory motion
- Question of
An instrument for measuring the distance travelled by a vehicle is:
- speedometer
- odometer
- kilometer
- meter/second
- Question of
Wind blows from/in:
- Low pressure to high pressure area.
- High pressure to low pressure area.
- Any direction
- no direction
- Question of
When air is heated ,its volume:
- Decreases
- Increases
- Will not be affected
- Creates high pressure
- Question of
Which of the following does NOT show oscillatory motion?
- swing
- fan
- see-saw
- pendulum
- Question of
Complete the formula : Speed =________/time .
- mass
- temperature
- distance
- direction
- Question of
What is the unit of measurement for speed?
- seconds
- seconds per meter
- meters
- meters per second
- Question of
If a person runs 100 meters in 20 seconds. What is their average speed?
- 2 m/s
- 5 m/s
- 10 m/s
- 100 m/s
- Question of
______is used to measure time .
- light gate
- stopwatch
- compass
- pendulum
- Question of
________ can be used to measure the time taken by an object to move between the two points.
- stopwatch
- light gates
- wall clock
- pendulum
- Question of
A student inserts an object into a measuring cup. If the mass of an object is 300 grams, then the mass of the object is _________.
- 1,5 g/cm3
- 2,5 g/cm3
- 0,5 g/cm3
- 2,5 g/cm3
- Question of
If 1 inch is equivalent to 25,4 mm, how many inches equals 1 m …
- 0,0254 inches
- 3,93 inches
- 39,37 inches
- 254 inches
- Question of
How can we measure pressure
- closing the bottle
- pressure measure
- pressure gauge
- None
- Question of
what is gas pressure
- a force that the gas exerts on the wall of its container
- pressure made by gas
- pressure by volume
- None
- Question of
how does heating a gas change its pressure
- the particles will move slower
- the particles will move faster
- the particles will bounce on the wall of the bottle
- None
- Question of
how does cooling a gas change its pressure
- cause an increase in pressure
- particles will move slowly
- pressure against the air valve of the bottle
- None
- Question of
how does changing the volume of a gas change its pressure
- when a gas is squeezed into a smaller volume, the particles have less space to move
- the gas pressure will decrease
- fill the container
- None
- Question of
What is the unit of measurement for speed?
- seconds
- seconds per meter
- meters
- meters per second