October review

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. For example, a migrating bird headed south for the winter at 3 m/s.

Front

What are balanced forces?

Back

Balanced forces are forces that do not cause a change in an object's motion. The object either remains at rest or continues to move at the same speed.

Front

What are the two subatomic particles that make up the nucleus of an atom?

Back

Protons and Neutrons.

Front

What force causes moving objects to come to a stop?

Back

Friction is the force that opposes motion and causes moving objects to slow down or stop.

Front

What is net force?

Back

Net force is the overall force acting on an object after all the forces are combined. For example, if the net force is 5 N left, it means there is a greater force acting to the left.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces cause an object to accelerate or change direction.

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

What is friction?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.

Front

What is a force?

Back

A force is a push or pull that can cause an object to accelerate, change direction, or change shape.