# 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

• 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

• Nichrome
• 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

• 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

• 2 m/s
• 5 m/s
• 10 m/s
• 100 m/s
• Question of

• 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

• 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 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