Q.1
A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4 seconds.
Q.2
Formula for distance is
Q.3
Acceleration is
Q.4
A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?
Q.5
Scalar Quantities are
Q.6
If velocity is constant then acceleration is what?
Q.7
Which of the following pairs of physical quantities have the same dimensions?
Q.8
For a body moving with uniform acceleration its final velocity equals ________
Q.9
A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/s2) is:
Q.10
Which among the following is false about displacement?
Q.11
The motion of the wheels of a bullock-cart while moving on the road is an example of
Q.12
The motion of a freely falling body is an example of ________ motion.
Q.13
Acceleration is the rate of change of
Q.14
Rate at which velocity changes over time?
Q.15
Who is the first person to define speed
Q.16
What is the fundamental unit of amount of a substance?
Q.17
The motion of a body that repeats itself after a regular interval of time is
Q.18
A light year is a measure of :
Q.19
The time period of a seconds pendulum is
Q.20
Magnetic keepers are used to protect magnets from :
Q.21
Which among the following is the fundamental quantity ?
Q.22
In ________ motion of a body its velocity varies with time.
Q.23
For an object, the state of rest is considered to be the state of ________ speed.
Q.24
The unit of energy in MKS system is
Q.25
One light year is equal to
Q.26
Gravitational force is maximum at which place
Q.27
Negative acceleration is in the opposite direction of:
Q.28
If an object moves with constant velocity,
Q.29
One billionth of a second is called
Q.30
Which one of the following is the value of one nanometer?
Q.31
A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance
Q.32
1 amu is equivalent to
Q.33
Parsec is the unit of
Q.34
One nanometer is equal to ________ meters.
Q.35
A metal ball and a rubber ball, both having the same mass, strike a wall normally with the same velocity. The rubber ball rebounds and the metal ball does not rebound. It can be concluded that
Q.36
A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls
Q.37
What is the force of attraction between any two bodies by virtue of their masses is called?
Q.38
If a boy sitting in a train, which is moving at a constant velocity, throws a ball straight up into the air, the ball will
Q.39
If the length of a simple pendulum is halved then its period of oscillation is
Q.40
While catching a ball, a player pulls down his hands to lower the–
Q.41
Momentum is measured as the product of :
Q.42
1 m/s equals ________ km/hr
Q.43
The Length of the Day is determined in
Q.44
A hydrogen balloon floats up because of
Q.45
A boat will submerge when it displaces water equal to its own:
Q.46
When a steel ball is placed on the surface of mercury, it does not sink because
Q.47
Clouds float in the atmosphere because of their
Q.48
Rate of change of momentum is
Q.49
Which law is also called law of inertia ?
Q.50
When a bar magnet is cut into two equal halves, the pole strength of each piece –
0 h : 0 m : 1 s