QUESTION BANK 1
A_________ of an object is called force
push or pull
Forces applied on objects in same direction ______ to one another.
ADD
If two forces act in opposite direction of an object than the net force is the ________ between the two forces.
DIFFERENCE
If you have to open the drawer, you have to ______ the drawer.
PULL
The net force on the object is _______ ,if they are equal and in opposite direction.
ZERO
The motion imparted to objects was due to the action of?
force
Name two types of forces
CONTACT FORCE
NON-CONTACT FORCE
The force between two charged bodies is known as?
ELECTROSTATIC FORCE
SI unit of pressure & force?
PASCAL & NEWTON
Formula of pressure
FORCE/AREA
Name the force that slows down the thing and prevents from moving?
FRICTIONAL FORCE
How much weight of air in kg is always over your head?
1000
The pressure of water is ______ at the bottom of bucket as compared to the surface of the bucket.
HIGHER
When a given force is applied on the larger area of contact the pressure exerted is?
DECREASES
Which force is applied by the person to lift a bag on the shoulder?
MUSCULAR FORCE
Liquids exert pressure on the walls of the container. YES or NO and in what direction?
YES
IN ALL DIRECTIONS
Knives, needles, saws are made sharp or pointed to?
INCREASE PRESSURE
The instrument used to measure the pressure of the liquid is?
MANOMETER
Which of the following is a contact force?
a)magnetic b)gravitational c)frictional d)electrostatic
C)FRICTIONAL
A force of 100N is applied on the area of 5m^2. what is the pressure?
20 pascal
Instrument used to measure atmospheric pressure?
BAROMETER
The pressure with the height of water column?
INCREASES
The strength of the force is expressed by
a) magnitude b)weight c)mass d) direction
A) MAGNITUDE
Which of the following is not the unit of the force?
A) pascal B)newton C) dyne D)kg-m/s2
A) PASCAL
Force acting on object may change
a)direction b)size c)shape d)all of the above
d) ALL OF THE ABOVE