Force & Motion Chapter 1

Front

What is acceleration?

Back

Acceleration is the rate at which an object's velocity changes over time. It can occur in the form of an increase in speed, a decrease in speed, or a change in direction.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It acts in the opposite direction to the movement and can slow down or stop the object.

Front

What happens to an object's motion when a greater force is applied?

Back

When a greater force is applied to an object, it will experience a greater change in speed compared to a weaker force.

Front

In which direction does the force need to act for an object to accelerate?

Back

The force must act in the same direction as the object's motion for it to accelerate.

Front

What is the relationship between mass and acceleration?

Back

According to Newton's second law, the acceleration of an object is inversely proportional to its mass when the same force is applied. This means that heavier objects accelerate less than lighter ones.

Front

What is Newton's first law of motion?

Back

Newton's first law states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = m * a, where F is force, m is mass, and a is acceleration.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. The greater the mass of an object, the greater its inertia.

Front

What is the effect of friction on motion?

Back

Friction slows down moving objects and can prevent them from starting to move. It is essential for activities like walking and driving.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects that are not moving, preventing them from starting to move. Kinetic friction acts on objects that are already in motion, slowing them down.