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Chapter: 02. Motion

⁠
An object is said to be at _ _ _ _ _ _ _ _ _ _ _ _ _ _ if its position does not change with time in relation to its surroundings.
Rest
Rest and motion are _ _ _ _ _ _ _ _ _ _ _ _ _ _ terms because a body can be at rest with respect to one object and in motion with respect to another at the same time.
Relative
The motion of an object in which every point of the object moves through the same distance in the same interval of time is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Translatory
The motion of an object along a straight line is called rectilinear or _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Linear
The motion of a car taking a turn or a train moving along a curved track is classified as _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Curvilinear
Circular motion is the movement of an object about a fixed central point along the _ _ _ _ _ _ _ _ _ _ _ _ _ _ of a circle.
Circumference
In _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion, a point nearer to the fixed axis moves through a smaller distance than a point farther from the axis.
Rotatory
The motion of an object in which the object moves to and fro or back and forth about its mean position is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Oscillatory
Unlike oscillatory motion, _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion can cause a physical change in the shape of the body.
Vibratory
The motion which repeats itself at fixed intervals of time is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Periodic
A simple pendulum consists of a small heavy mass called a _ _ _ _ _ _ _ _ _ _ _ _ _ _ suspended by a weightless, inextensible string from a rigid support.
Bob
The time taken by a pendulum to complete one oscillation is called its _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Time period
The motion which does not repeat itself at fixed intervals of time is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Non-periodic
A combination of rotatory and translatory motion is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Rolling
The irregular, zig-zag motion in which an object frequently changes its direction is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion.
Random
The SI unit of distance is the _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Metre
The actual length of the path covered by a moving object, irrespective of direction, is called _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Distance
A device that displays the speed of a moving vehicle is known as a _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Speedometer
The actual distance travelled in kilometres by a vehicle is displayed by a device called an _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Odometer
An object is in _ _ _ _ _ _ _ _ _ _ _ _ _ _ motion if it covers equal distances in equal intervals of time.
Uniform
Calculating the total distance travelled by an object divided by the total time taken gives its _ _ _ _ _ _ _ _ _ _ _ _ _ _ speed.
Average
The distance travelled by light in one year is known as a _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Light year
The quantity of matter that a body contains is defined as its _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Mass
The force with which the Earth attracts a body towards its centre is defined as its _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Weight
On the Earth, the weight of a body is maximum at the _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Poles
The mass of a body is measured using a beam balance or a _ _ _ _ _ _ _ _ _ _ _ _ _ _ balance.
Physical
The SI unit of weight is the _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Newton
One kilogram force (1 kgf) is equal to approximately _ _ _ _ _ _ _ _ _ _ _ _ _ _ N.
10
The English mathematician and physicist who formulated the laws of motion and universal gravitation was Sir _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
Isaac Newton
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