8.6A F=MxA Flashcard #2

Front

What is Newton's Second Law of Motion?

Back

Newton's Second Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. It can be expressed with the formula F = m × a.

Front

How do you calculate acceleration?

Back

Acceleration (a) can be calculated using the formula a = F/m, where F is the net force applied to the object and m is its mass.

Front

What is the unit of force in the International System of Units (SI)?

Back

The unit of force in the SI system is the Newton (N).

Front

If a force of 20 N is applied to a mass of 50 kg, what is the acceleration?

Back

0.4 m/s² (using the formula a = F/m, where a = 20 N / 50 kg).

Front

What is the mass of an object if a force of 250 N results in an acceleration of 5 m/s²?

Back

50 kg (using the formula m = F/a, where m = 250 N / 5 m/s²).

Front

What is the relationship between mass, force, and acceleration?

Back

The relationship is defined by Newton's Second Law: F = m × a, meaning force equals mass times acceleration.

Front

How much force is needed to accelerate a 2.55 kg toy car at 6.00 m/s²?

Back

15.3 N (using the formula F = m × a, where F = 2.55 kg × 6.00 m/s²).

Front

What is the acceleration of a 50 kg object pushed with a force of 500 N?

Back

10 m/s² (using the formula a = F/m, where a = 500 N / 50 kg).

Front

What does it mean if an object has a mass of 0.02 kg?

Back

It means the object is very light, equivalent to about 20 grams.

Front

If a skier applies a force of 132 N and accelerates at 2 m/s², what is the skier's mass?

Back

66 kg (using the formula m = F/a, where m = 132 N / 2 m/s²).