EASY
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Which of the following is true about a body falling freely under the action of gravity?

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Important Questions on Motion and Its Laws

HARD
Science>Physics>Motion and Its Laws>Types of Motions
A pendulum beats seconds in a certain place on the surface of the earth but when it is taken to the peak of a mountain it loses 15 s per day. Find the height of the peak. Given radius of the earth is 6400 km.
EASY
Science>Physics>Motion and Its Laws>Types of Motions
Which of the following options about acceleration is wrong?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
Acceleration is a vector unit same as velocity where velocity could change its magnitude or direction, or both therefore change in acceleration can be noticed in its _____.
EASY
Science>Physics>Motion and Its Laws>Types of Motions
Which of the following options correctly depicts the unit of acceleration?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
If a body is dropped from a high tower and if the viscosity of the air is neglected then the motion is termed as _____.
EASY
Science>Physics>Motion and Its Laws>Types of Motions
If the particle has the velocity of 6ms initially and the final velocity is 8ms at t=0, then what will be the constant acceleration at t=1?
HARD
Science>Physics>Motion and Its Laws>Types of Motions
A pendulum which beats seconds at the place where g=980 cm/s2  is taken to a place where g=981 cm/s2. How many seconds does it lose or gain in a day? By how much its length be altered to keep correct time?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
While teaching the topic on 'Motion and Time' to Class VII students, Savita gave examples of different kinds of motion to the students. Which one of the following examples was quoted by her incorrectly?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
Negative acceleration is termed as _____ in Kinematics.
EASY
Science>Physics>Motion and Its Laws>Types of Motions
What will be the body height if the mass given is 3kg and it reaches the ground after 5 seconds?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
We know when a body is under free fall motion the acceleration is constant and whose magnitude is _____ m/s2.
EASY
Science>Physics>Motion and Its Laws>Types of Motions
Which of the following forces acts on a body when it is under free fall in a vacuum?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
a(t)=ddtv(t) is the mathematical formula for which of the following?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
If a body has zero acceleration then which of the following statements about its velocity is true?
MEDIUM
Science>Physics>Motion and Its Laws>Types of Motions
A feather of 5 gm and rod of 10 gm have same kinetic energies. Which statement about the linear momentum of both objects is correct?
EASY
Science>Physics>Motion and Its Laws>Types of Motions
When a body whose velocity is decreasing with time then the acceleration will act _____ to the velocity.
HARD
Science>Physics>Motion and Its Laws>Types of Motions
A particle of mass m is projected vertically and a t=0 it is a its top most point (at height H). It now explodes into two particles of equal mass. The first particle to hit the ground falls vertically and hits it in time T. Find time taken by the other particle to hit the ground.
MEDIUM
Science>Physics>Motion and Its Laws>Types of Motions
The initial speed of a runner is 100 m/s and final speed is 20 m/s. The length of the track is 100 m. Find the acceleration achieved by the runner _____.
EASY
Science>Physics>Motion and Its Laws>Types of Motions
v=v0+v2 is the equation for the representation of the fact that the acceleration is _____.
MEDIUM
Science>Physics>Motion and Its Laws>Types of Motions
Acceleration due to gravity does not depend on which of the following physical quantities?