GP Motion Force

Which is an example of the force of gravity of the earth

Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob?

Applied force
Frictional force
Restoring force
Virtual force

Which one of the following has maximum inertia

Which one of the following has maximum inertia?

An atom
A molecule
A one-rupee coin
A cricket ball

An object is moving, with uniform acceleration a

An object is moving, with uniform acceleration a. Its initial velocity is u and after time t its velocity is v. The equation of its motion is v = u + at. The velocity (along y-axis) time (along x-axis) graph shall be a straight line

passing through origin
with x-intercept u
with y-intercept u
with slope u

If an object moves with constant velocity then

If an object moves with constant velocity then which one of the following statements is not correct?

Its motion is along a straight line
Its speed changes with time
Its acceleration is zero
Its displacement increases linearly with time

If T is the time period of an oscillating pendulum

If T is the time period of an oscillating pendulum, which one the following statements is not correct?

The motion repeats after time T only once
T is the least time after which motion repeats itself
The motion repeats itself after nT, where n is a positive integer
T remains the same only for small angular displacements

If the motion of an object is represented by a straight line

If the motion of an object is represented by a straight line parallel to the time axis in a distance-time graph, then the object undergoes

decelerated motion
uniform non-zero velocity motion
accelerated motion
zero velocity motion

A force applied on a body is represented as

F = 6i - 8j + 10k

and accelerates is at 1 m/s². The mass of the body is

10√2 kg
2√10 kg
8 kg
10 kg

A passenger in a moving train tosses a coin upward which falls behind him

A passenger in a moving train tosses a coin upward which falls behind him. It implies that the motion of the train is

uniform
retarded
accelerated
along the circular tracks

A motor vehicle is moving on a circle with uniform speed

A motor vehicle is moving on a circle with uniform speed. The net acceleration of the vehicle is

perpendicular to the radius and along the velocity
towards the centre of circle
away from the centre along the radius of the circle
zero

If the distance S covered by a moving car in rectilinear motion

If the distance S covered by a moving car in rectilinear motion with a speed v in time t is given by S = vt, then the car undergoes

uniform velocity
uniform acceleration
non-uniform acceleration
non-uniform velocity

A bullet is fired vertically up from a 400 m tall tower with a speed

A bullet is fired vertically up from a 400 m tall tower with a speed 80 m/s. If g is taken as 10 m/s², the time taken by the bullet to reach the ground will be

24 s
20 s
16 s
8 s

Newton's law of motion cannot be applicable to the particles

Newton's law of motion cannot be applicable to the particles moving at a speed comparable to the speed of

light
sound
rocket
bullet train

Automobiles are fitted with a device that shows the distance travelled

Automobiles are fitted with a device that shows the distance travelled. Such a device is known as

Speedometer
Cathetometer
Odometer
Lactometer

The speed of a car travelling on a straight road

The speed of a car travelling on a straight road is listed below at successive intervals of 1 s:
Time (s) 0 1 2 3 4
Speed (m/s) 0 2 4 6 8

Which of the following is/are correct?

The car travels

with a uniform acceleration of 2 m/s².
16 m in 4 s.
with an average speed of 4 m/s.

Select the correct answer using the code given below:

1, 2 and 3
2 and 3 only
1 and 2 only
1 only

In a vacuum, a five-rupee coin, a feather of a sparrow bird and a mango are dropped

In a vacuum, a five-rupee coin, a feather of a sparrow bird and a mango are dropped simultaneously from the same height. The time taken by them to reach the bottom is t₁, t₂ and t₃ respectively. In this situation, we will observe that

t₁ > t₂ > t₃
t₁ > t₃ > t₂
t₃ > t₁ > t₂
t₁ = t₂ = t₃

An object moves in a circular path with a constant speed

An object moves in a circular path with a constant speed. Which one of the following statements is correct?

The centripetal acceleration of the object is smaller for a gentle curve (i.e., curve of larger radius) than that for a sharp curve (i.e., curve of smaller radius).
The centripetal acceleration is greater for a gentle curve than that for a sharp curve.
The centripetal acceleration is the same for both, the gentle and sharp curves.
The centripetal acceleration causes the object to slow down.

Rocket works on the principle of conservation of

mass
energy
momentum
velocity

An object of mass 2 kg is sliding with a constant velocity of 4 m/s

An object of mass 2 kg is sliding with a constant velocity of 4 m s^–1 on a frictionless horizontal table. The force required to keep the object moving with the same velocity is

32 N
0 N
2 N
8 N

A passenger in a moving train tosses a coin which falls behind him

A passenger in a moving train tosses a coin which falls behind him. It means that motion of the train is

accelerated
uniform
retarded
along circular tracks

The inertia of an object tends to cause the object

to increase its speed
to decrease its speed
to resist any change in its state of motion
to decelerate due to friction

A goalkeeper in a game of football pulls his hands backwards after holding the ball

A goalkeeper in a game of football pulls his hands backwards after holding the ball shot at the goal. This enables the goal keeper to

exert larger force on the ball
reduce the force exerted by the ball on hands
increase the rate of change of momentum
decrease the rate of change of momentum

Slope of a velocity - time graph gives

Slope of a velocity – time graph gives

the distance
the displacement
the acceleration
the speed

Which figures represents uniform motion of a moving object

Which of the following figures represents uniform motion of a moving object correctly?

Suppose a boy is enjoying a ride on a merry-go-round

Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m s^–1. It implies that the boy is

at rest
moving with no acceleration
in accelerated motion
moving with uniform velocity

From the given v–t graph, it can be inferred that the object is

From the given v – t graph, it can be inferred that the object is

in uniform motion
at rest
in non-uniform motion
moving with uniform acceleration

If the displacement of an object is proportional to square of time

If the displacement of an object is proportional to square of time, then the object moves with

uniform velocity
uniform acceleration
increasing acceleration
decreasing acceleration

A body is thrown vertically upward with velocity u

A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is

u/g
u²/2g
u²/g
u/2g

To sharpen the blade of a knife by rubbing it against a surface

To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?

stone
plastic block
wooden block
glass block

During dry weather, while combing hair, sometimes we experience hair flying apart

During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is