Force and Motion

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate in the direction of the force. It occurs when the total forces acting on an object are not equal.

Front

What is net force?

Back

Net force is the sum of all forces acting on an object, taking into account their direction. It determines the object's motion.

Front

According to Newton's second law of motion, what type of force causes an object to move?

Back

An unbalanced force causes an object to move in the direction of the force.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact.

Front

If a student pushes against a wall with 20 N of force and the wall does not move, what force does the wall exert?

Back

The wall exerts 20 N of force back against the student.

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size and opposite in direction, resulting in no change in motion.

Front

What is gravity?

Back

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

Front

What is contact force?

Back

Contact force is a force that occurs when two objects are physically touching each other.

Front

What happens to an object when the net force acting on it is zero?

Back

When the net force is zero, the object remains at rest or continues to move at a constant velocity.

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.