Understanding Momentum and Newton's Second Law

Why does a fast-moving bullet cause more damage than a larger stone?

• Because it has more momentum due to its high velocity

• Because it is smaller

• Because it is heavier

• Because it is made of metal

What is the formula for calculating momentum?

• Mass times velocity

• Velocity minus mass

• Mass divided by velocity

• Mass plus velocity

What unit is used to measure momentum?

• m/s

• kg m/s

• kg

• N

What happens to a car's momentum when you push it gradually?

• It stops

• It decreases

• It remains the same

• It increases

According to Newton's Second Law, what does the rate of change of momentum depend on?

• The mass of the object only

• The velocity of the object only

• The applied unbalanced force and the time duration

• The color of the object

What is the relationship between force, mass, and acceleration in Newton's Second Law?

• Force equals acceleration divided by mass

• Force equals mass divided by acceleration

• Force equals mass plus acceleration

• Force equals mass times acceleration

What is the constant of proportionality in Newton's Second Law when using standard units?

• 0

• 2

• 1

• 10

Why do fielders pull their hands back when catching a cricket ball?

• To decrease the time of impact

• To increase the force applied

• To increase the time of impact and reduce force

• To show off their skills

What happens if a fielder tries to catch a ball suddenly?

• The ball will slow down gradually

• A large force is required, which may hurt the fielder

• The ball will bounce off

• The ball will stop immediately

What does Newton's Second Law of Motion state about the direction of force?

• It is perpendicular to the direction of motion

• It is opposite to the direction of motion

• It is in the direction of the applied force

• It has no specific direction