Newtons 2nd Law Practice

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd 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=ma.

Front

What does the variable 'F' represent in the equation F=ma?

Back

'F' represents the net force acting on an object, measured in Newtons (N).

Front

What does the variable 'm' represent in the equation F=ma?

Back

'm' represents the mass of the object, measured in kilograms (kg).

Front

What does the variable 'a' represent in the equation F=ma?

Back

'a' represents the acceleration of the object, measured in meters per second squared (m/s²).

Front

If a force of 10 N is applied to a mass of 2 kg, what is the acceleration?

Back

Using F=ma, acceleration (a) = F/m = 10 N / 2 kg = 5 m/s².

Front

How does increasing mass affect acceleration when force is constant?

Back

Increasing mass decreases acceleration if the force applied remains constant, as per the formula a = F/m.

Front

What is the relationship between force and acceleration?

Back

Force and acceleration are directly proportional; as force increases, acceleration increases, provided mass remains constant.

Front

What is the net force acting on an object?

Back

The net force is the total force acting on an object after all the forces are combined, determining the object's acceleration.

Front

If a car has a mass of 1,000 kg and accelerates at 3 m/s², what is the net force?

Back

Using F=ma, net force = 1,000 kg * 3 m/s² = 3,000 N.

Front

What happens to the force required to accelerate an object if its mass is halved?

Back

If the mass is halved, the force required to achieve the same acceleration is also halved.