Forces

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What role does friction play in everyday activities?

Back

Friction allows us to walk without slipping, enables vehicles to brake, and helps objects stay in place.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

How does mass affect the force of gravity?

Back

The greater the mass of an object, the stronger the gravitational force it exerts.

Front

What is the relationship between mass and acceleration according to Newton's second law?

Back

According to Newton's second law, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).

Front

What happens to the braking distance of a vehicle as its mass increases?

Back

As the mass of a vehicle increases, the braking distance also increases because more force is needed to stop the vehicle.

Front

What is the effect of icy roads on friction?

Back

Icy roads have less friction, making it more difficult for vehicles to stop or change direction.

Front

What is the formula for calculating force?

Back

Force is calculated using the formula F = ma, 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; it is directly related to the mass of the object.

Front

How does increasing the mass of a shopping cart affect the force needed to push it?

Back

As the mass of the shopping cart increases, more force is required to push it due to increased inertia.