Newton's Laws of Motion: Interactive Learning Quizzes for Biomechanics for Sport

Question 1

Friction is a force that resists the relative motion between two surfaces. Which factor does not influence the amount of friction?

Accepted Answer

Acceleration of the surfaces

Answer

Nature of the surfaces in contact

Answer

Perpendicular force pressing the surfaces together

Answer

Surface area of contact

Question 2

A cyclist is riding up a hill at a constant velocity. Which of the following forces is NOT acting on the cyclist?

Accepted Answer

Frictional force

Answer

Gravity

Answer

Air resistance

Answer

Normal contact force from the ground

Question 3

The SI unit of force is:

Accepted Answer

Newton

Answer

Kilogram

Answer

Metre

Answer

Second

Question 4

According to Newton's First Law, an object:

Accepted Answer

At rest will stay at rest, and an object in motion will stay in motion

Answer

In motion will accelerate at a constant rate

Answer

Moving at a constant velocity will eventually slow down

Answer

Experiencing a net force will accelerate in the direction of the force

Question 5

The force that opposes the motion of an object moving through a fluid is known as:

Accepted Answer

Drag

Answer

Friction

Answer

Lift

Answer

Resistance

Question 6

Which of the following is the unit of measurement for force in the International System of Units (SI)?

Accepted Answer

Newton

Answer

Joule

Answer

Metre

Answer

Second

Question 7

The force that pulls objects towards each other is:

Accepted Answer

Gravity

Answer

Friction

Answer

Normal force

Answer

Tension

Question 8

Which of the following is an example of an impact force?

Accepted Answer

A gymnast landing on a mat

Answer

A sprinter pushing off the starting blocks

Answer

A cyclist pedalling uphill

Answer

A swimmer gliding through the water

Question 9

The acceleration of an object is inversely proportional to its:

Accepted Answer

Mass

Answer

Velocity

Answer

Force

Answer

Displacement

Question 10

Which of the following is a vector quantity?

Accepted Answer

Force

Answer

Mass

Answer

Temperature

Answer

Time

Question 11

Which of the following is NOT a type of force that can act on the human body during sports activities?

Accepted Answer

Electromagnetism

Answer

Gravity

Answer

Friction

Answer

Drag

Question 12

The force that opposes the sliding of one surface over another is known as:

Accepted Answer

Friction

Answer

Gravity

Answer

Normal force

Answer

Tension

Question 13

A tennis ball with a mass of 57 grams (0.057 kg) is hit with a force of 100 N. The ball's acceleration according to Newton's Second Law is approximately:

Accepted Answer

1.75 m/s²

Answer

57 m/s²

Answer

100 m/s²

Answer

1750 m/s²

Question 14

The equation for calculating the work done by a force is:

Accepted Answer

Work = Force × Distance

Answer

Work = Force / Distance

Answer

Work = Distance / Force

Answer

Work = Mass × Acceleration

Question 15

Which of the following is an example of projectile motion in sports?

Accepted Answer

A football being thrown

Answer

A car driving around a track

Answer

A swimmer diving off a diving board

Answer

A gymnast performing a backflip

Question 16

According to Newton's Third Law, for every action, there is:

Accepted Answer

An equal and opposite reaction

Answer

A greater reaction

Answer

A smaller reaction

Answer

No reaction

Question 17

The centre of mass of an object is the point where:

Accepted Answer

The mass is evenly distributed

Answer

The weight is concentrated

Answer

The object is most stable

Answer

The object's motion is controlled

Question 18

According to Newton's first law of motion, an object at rest will remain at rest, and an object in motion will continue to move at the same speed and in the same direction unless acted upon by an outside force.

Accepted Answer

True

Answer

Only true for objects at rest

Answer

Only true for objects in motion

Answer

False

Question 19

Which of the following correctly represents Newton's second law of motion?

Accepted Answer

F = ma

Answer

a = Ft

Answer

v = Ft

Answer

F = mv

Question 20

Newton's third law of motion states that:

Accepted Answer

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

Answer

Force is directly proportional to mass

Answer

Acceleration is equal to velocity divided by time

Answer

An object in motion will remain in motion

Question 21

A gymnast exerts a force of 200 N on the uneven bars. As per Newton's third law of motion, the uneven bars exert a force of what magnitude on the gymnast?

Accepted Answer

200 N

Answer

400 N

Answer

300 N

Answer

100 N

Question 22

Which of the following is not a force?

Accepted Answer

Velocity

Answer

Friction

Answer

Air resistance

Answer

Gravity

Question 23

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Temperature