Linear Motion in Sports Science: Master the Basics of Movement

Question 1

Which of the following is the SI unit of displacement?

Accepted Answer

Metre (m)

Answer

Second (s)

Answer

Newton (N)

Answer

Kilogram (kg)

Question 2

The velocity of an object is defined as its:

Accepted Answer

Displacement per unit time

Answer

Mass per unit volume

Answer

Force per unit mass

Answer

Acceleration per unit time

Question 3

An object moving with constant acceleration will have a:

Accepted Answer

Changing velocity

Answer

Zero velocity

Answer

Decreasing velocity

Answer

Constant velocity

Question 4

Newton's First Law of Motion states that:

Accepted Answer

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer

For every action, there is an equal and opposite reaction.

Answer

The momentum of an isolated system remains constant.

Answer

The acceleration of an object is directly proportional to the net force acting on the object, and inversely proportional to its mass.

Question 5

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Volume

Answer

Temperature

Answer

Mass

Question 6

The trajectory of a projectile is:

Accepted Answer

A parabola

Answer

A circle

Answer

A straight line

Answer

An ellipse

Question 7

Which of the following is NOT one of Isaac Newton's three Laws of Motion?

Accepted Answer

The force exerted by Earth on an object near its surface is directly proportional to the object's mass.

Answer

An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer

The acceleration of an object is directly proportional to the net force acting on the object, and inversely proportional to the mass of the object.

Answer

For every action, there is an equal and opposite reaction.

Question 8

Which of these is NOT a fundamental quantity used to describe linear motion?

Accepted Answer

Mass

Answer

Displacement

Answer

Velocity

Answer

Acceleration

Question 9

Which of the following is NOT a valid unit of velocity?

Accepted Answer

furlongs per fortnight

Answer

m/s

Answer

km/h

Answer

miles per hour

Question 10

Which of the following is a precise definition of velocity?

Accepted Answer

Displacement per unit of time in a specific direction

Answer

Acceleration per unit of time

Answer

Mass per unit of time

Answer

Force per unit of time

Question 11

A runner increases their speed from 5 m/s to 10 m/s over a time of 2 seconds. Calculate the runner's acceleration.

Accepted Answer

2.5 m/s²

Answer

5 m/s²

Answer

10 m/s²

Answer

15 m/s²

Question 12

Which of Newton's Laws of Motion states that an object at rest will remain at rest, and an object in motion will remain in motion with an unchanging velocity unless acted upon by an external force?

Accepted Answer

Newton's First Law

Answer

Newton's Law of Universal Gravitation

Answer

Newton's Second Law

Answer

Newton's Third Law

Question 13

Identify the SI unit of acceleration.

Accepted Answer

m/s²

Answer

m/s

Answer

km/s

Answer

cm/s

Question 14

A car covers a distance of 100 m in 10 seconds. Calculate the car's average velocity.

Accepted Answer

10 m/s

Answer

20 m/s

Answer

5 m/s

Answer

15 m/s

Question 15

Which of the following is a scalar quantity?

Accepted Answer

Speed

Answer

Velocity

Answer

Displacement

Answer

Acceleration

Question 16

Which of the following is the SI unit of displacement?

Accepted Answer

Metre (m)

Answer

Kilogram (kg)

Answer

Second (s)

Answer

Newton (N)

Question 17

Which of Newton's Laws of Motion describes the relationship between the acceleration of an object, the net force acting on the object, and the mass of the object?

Accepted Answer

Second Law

Answer

First Law

Answer

Law of Universal Gravitation

Answer

Third Law

Question 18

Which of the following is an example of a non-contact interaction?

Accepted Answer

Magnetic Force

Answer

Tension

Answer

Elastic force

Answer

Friction

Question 19

A velocity-time graph for an object moving with a constant acceleration is a:

Accepted Answer

Straight line with a non-zero slope

Answer

Straight line parallel to the time axis

Answer

Hyperbola

Answer

Parabola

Question 20

Which of the following factors affects the acceleration of an object?

Accepted Answer

Net force acting on the object

Answer

Mass of the object

Answer

Direction of the applied force

Answer

Time of application of force

Question 21

Which of the following physical quantities is a vector?

Accepted Answer

Velocity

Answer

Distance

Answer

Mass

Answer

Speed

Question 22

Which of Newton's Laws of Motion states that an object at rest (or moving with a constant velocity) will remain in that state unless acted upon by an unbalanced force?

Accepted Answer

First Law of Motion (Law of Inertia)

Answer

Law of Universal Gravitation

Answer

Second Law of Motion (Law of Acceleration)

Answer

Third Law of Motion (Law of Action-Reaction)

Question 23

Which of the following is a characteristic of motion in a straight line?

Accepted Answer

Constant velocity or constant acceleration

Answer

Random movement

Answer

Oscillatory motion

Answer

Circular motion

Question 24

Which of the following is a vector quantity in linear motion?

Accepted Answer

Velocity

Answer

Mass

Answer

Time

Answer

Temperature

Question 25

A cyclist travels 300 meters in 1 minute. What is the cyclist's average speed? (Speed = Distance/Time)

Accepted Answer

5 m/s

Answer

0.05 m/s

Answer

15 m/s

Answer

0.5 m/s

Question 26

A ball is thrown vertically upwards with a velocity of 10 m/s. What is its velocity at the highest point of its trajectory? (Velocity at the highest point of a projectile's trajectory is 0 m/s)

Accepted Answer

0 m/s

Answer

-10 m/s

Answer

10 m/s

Answer

5 m/s

Question 27

Which of Newton's Laws of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force? (Newton's First Law)

Accepted Answer

First Law

Answer

Third Law

Answer

Second Law

Answer

Fourth Law

Question 28

Which of the following is an example of a centripetal force? (Centripetal force is a force that keeps an object moving in a circular path)

Accepted Answer

The force that keeps a car moving in a circle

Answer

The force of friction

Answer

The force of gravity

Question 29

Which of the following is NOT a type of linear motion? (Linear motion is motion in a straight line)

Accepted Answer

Circular motion

Answer

Parabolic motion

Answer

Oscillatory motion

Answer

Rectilinear motion

Question 30

An object moving with a constant velocity of +10 m/s has:

Accepted Answer

Zero acceleration

Answer

Constant acceleration of +10 m/s²

Answer

Positive acceleration of +20 m/s²

Answer

Negative acceleration of -20 m/s²

Question 31

The displacement of an object is:

Accepted Answer

The shortest distance from the initial to the final position.

Answer

The total distance traveled by the object.

Answer

The average velocity of the object.

Answer

The time taken for the object to move.

Question 32

The acceleration due to gravity on Earth is approximately:

Accepted Answer

9.8 m/s²

Answer

15 m/s²

Answer

20 m/s²

Answer

10 m/s²

Question 33

Which of the following is NOT a factor that affects air resistance?

Accepted Answer

Humidity

Answer

Velocity of the object

Answer

Size of the object

Answer

Shape of the object

Question 34

Which of the following is a projectile?

Accepted Answer

A ball thrown into the air

Answer

A bicycle riding down a hill

Answer

A person running on a track

Answer

A car driving on a straight road at a constant speed

Question 35

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Time

Answer

Temperature

Question 36

Which of the following units is used to measure distance?

Accepted Answer

Meter

Answer

Second

Answer

Newton

Answer

Degree Celsius

Question 37

A sprinter runs 100 meters in 10 seconds. What is their average speed?

Accepted Answer

10 m/s

Answer

0.1 m/s

Answer

100 m/s

Answer

1 m/s

Question 38

Which of these is a vector quantity, meaning it has both magnitude and direction?

Accepted Answer

Velocity

Answer

Time

Answer

Speed

Answer

Distance

Question 39

A cyclist accelerates from rest to a speed of 10 m/s in 5 seconds. What is their acceleration?

Accepted Answer

2 m/s²

Answer

10 m/s²

Answer

5 m/s²

Answer

0.5 m/s²

Question 40

Which of Newton's Laws of Motion describes the relationship between force, mass, and acceleration?

Accepted Answer

Newton's Second Law of Motion

Answer

None of the above

Answer

Newton's Third Law of Motion

Answer

Newton's First Law of Motion

Question 41

A long jumper is running at a constant velocity. What can we say about the forces acting on them?

Accepted Answer

The net force acting on the jumper is zero.

Answer

The jumper is experiencing no forces.

Answer

The jumper is decelerating.

Answer

The jumper is accelerating.

Question 42

What does the gradient (slope) of a displacement-time graph represent?

Accepted Answer

Velocity

Answer

Distance

Answer

Acceleration

Question 43

What does the area under a velocity-time graph represent?

Accepted Answer

Displacement

Answer

Time

Answer

Velocity

Answer

Acceleration

Question 44

A swimmer pushes off the wall of a pool. According to Newton's Third Law, what is the reaction force?

Accepted Answer

The wall pushing back on the swimmer.

Answer

The water resistance acting on the swimmer.

Answer

The swimmer's weight.

Answer

The swimmer's buoyancy.

Question 45

A ball is thrown vertically upwards. What is its acceleration at the highest point of its trajectory?

Accepted Answer

9.81 m/s² downwards (due to gravity)

Answer

9.81 m/s² upwards

Answer

0 m/s²

Question 46

Which factors affect the horizontal distance travelled by a projectile (ignoring air resistance)?

Accepted Answer

Both initial velocity and launch angle

Answer

Neither initial velocity nor launch angle

Answer

Only launch angle

Answer

Only initial velocity

Question 47

An athlete runs 100 meters in 10 seconds. What is their average speed?

Accepted Answer

10 m/s

Answer

20 m/s

Answer

15 m/s

Answer

5 m/s

Question 48

A ball is thrown vertically upwards with an initial velocity of 10 m/s. What is its maximum height?

Accepted Answer

10.2 m

Answer

20.4 m

Answer

5.1 m

Answer

15.3 m

Question 49

According to Newton's First Law of Motion, an object at rest will remain at rest unless acted upon by an unbalanced force.

Accepted Answer

True

Answer

Only if the object is in a vacuum

Answer

Only if the object is on a frictionless surface

Answer

False

Question 50

Which of the following is NOT a type of force?

Accepted Answer

Acceleration

Answer

Gravity

Answer

Tension

Answer

Friction

Question 51

A car of mass 1000 kg is traveling at a speed of 20 m/s. What is its kinetic energy?

Accepted Answer

100 kJ

Answer

150 kJ

Answer

50 kJ

Answer

200 kJ

Question 52

The acceleration of an object is constant if its velocity changes at equal intervals of time.

Accepted Answer

True

Answer

Only if the velocity is changing in the same direction

Answer

Only if the velocity is changing at a constant rate

Answer

False

Question 53

Which of the following is a factor that affects the speed of a falling object?

Accepted Answer

Mass

Answer

Shape

Answer

Volume

Question 54

A soccer player kicks a ball with a force of 100 N. The ball has a mass of 0.5 kg. What is the acceleration of the ball?

Accepted Answer

200 m/s²

Answer

150 m/s²

Answer

250 m/s²

Answer

100 m/s²

Question 55

Which of the following is an example of projectile motion?

Accepted Answer

A ball thrown into the air

Answer

A car driving down the road

Answer

A book sitting on a table

Answer

A person walking

Question 56

The displacement of an object is the distance and direction from its starting point to its ending point.

Accepted Answer

True

Answer

False

Answer

Only if the object is moving in a straight line

Answer

Only if the object is moving at a constant speed