According to Newton's Second Law, what is the relationship between force, mass, and acceleration?

Force equals mass times acceleration (F=ma).

A constant force is applied to two objects of different masses. Which object will experience a greater acceleration?

The object with the smaller mass.

The car has a larger mass, so a greater force is needed to achieve the same acceleration (change in direction) compared to a bicycle.

Grade 9th Grade · Physics · 80 min

I can use Newton's Second Law to solve problems involving force, mass, and acceleration.

FuseSchool - Global Education · 4:47

Newton's Second Law | Forces & Motion | Physics | FuseSchool

3 key concepts

1
Newton's Second Law explains that unbalanced forces cause objects to speed up, slow down, or change direction.
2
Newton's Second Law can be expressed with the equation: Resultant Force = mass x acceleration, where force is measured in Newtons, mass in kilograms, and acceleration in meters per second squared.
3
If the force from your arm is the same, but the mass of an object is much bigger, its acceleration will be smaller.

12 questions · Multiple choice & Short answer

Quick comprehension check

“A 1500 kg car accelerates at a rate of 3 m/s². Calculate the net force acting on the car.”

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