WorksheetsForce
Total questions: 52
Worksheet time: 35mins
(a) is a push or pull acting on a body.
Force can change the _______________,_______________ and ______________ of motion of an object.
(a)
The S.I. unit of force is _________________or _________________.
(a)
various types of forces such as _______________,_____________,__________________,_________________,________________
muscular
electrical
magnetic
gravitational
frictional
The gravitational force of attraction acting on a body is called its (a) .
The weight can be measured by a (a) balance.
The S.I. unit of weight is '________________' or '__________________'
Newton
kilogram (kg).
kg⋅m/s2 (kilograms times meters per second squared) = which is equal to a newton (N).
The formula of weight : (a)
The earth attracts a mass of one kilogram with a force of about (a) newton.
Frictional force is a (a) force
Friction can increase only upto a limit called (a)
The force acting per unit area is called (a)
The S.I. unit of pressure is ___________ or ______________
(a)
The force acting on a body, perpendicular to its surface is called (a)
The S.I. unit of thrust is (a) .
The force exerted by a liquid on a body submerged in it is called (a) .
The SI unit of force is
Newton
Watt
Electrostatic force is a :
Contact force
Consequential force
Pascal is the SI Unit of :
Work
Force
As area increases, pressure :
Decreases
Increases
Which of the following is an example of consequential force
Push
Pull
Twist
One kgf is equal to
9 N
9.8N
Streamlining of a body is done to :
Make it attractive
Increase the friction
Reduce the friction
Make it less expensive
Weight of a body is measured by using the formula :
W = mg
W = ma
W = m/g
W = m/a
Frictional force always opposes :
Motion
Pressure
Tension in a string is an example of
Contact force
Consequential force
Electromagnetic force
If thrust is increased, pressure :
Increases
Remains same
Decreases
Fishes have streamlined bodies to :
Increase friction
Reduce volume
Reduce friction
The force of friction is :
Always advantageous
Neither advantage nor disadvantage
Sometime advantage and sometime disadvantage.
The SI unit of thrust is (a)
The force acting normally on a surface is called (a)
Muscular force is an example of __________________ force.
contact
Non Contact
_______________ causes wear and tear of a body.
Exercise
Damage
The cutting edge of a knife is made thin to increase the effect of __________________
pressure
friction
Rubbing of hands produces heat due to__________
force
friction
A balloon rubbed on a woolen cloth stick to the wall due to__________
an electrostatic force of attraction.
muscular force
Ball bearings are used to reduce _________________
surface contact and friction
Force
Sliding friction is________________________than rolling friction.
greater
less
The maximum value of friction is called_________________________friction.
static
limiting
Force which require physical contact between the objects to bring about changes is called____________
contact force
Non contact force
Friction
Weight of a body always act in the ___________ direction.
vertically downward
vertically upward
Friction is a necessary evil.
true
false
Gravitational force is an example of non-contact force.
true
false
A bird has a streamlined body.
true
false
Weight of a body always act downwards.
true
false
The SI unit of force is N/m2.
true
false
Burning of meteor, in the atmosphere is due to gravitational force.
true
false
The spikes on the soles of shoes of athletes increases the friction.
true
false
A horse can move easily in a desert.
true
false
Pressure is directly proportional to force.
true
false
Lubricants increases the friction between the moving parts of a machine.
true
false
Frictional force is a self-adjusting force.
false
true
