Physics Vocabulary: Forces and Motion

What is the term for fluid friction acting on an object moving through the air?

• air resistance

• wind friction

• drag force

• atmospheric push

What is the term for equal forces acting on an object in opposite directions?

• balanced forces

• unbalanced forces

• centripetal forces

• net forces

What is the term for a force that causes an object to move in a circle?

• centripetal force

• frictional force

• magnetic force

• gravitational force

What is the term for a force constantly applied to an object (gravity, buoyancy, etc.)?

• continuous force

• static force

• variable force

• impulsive force

What is the term for the resistance of the air against the forward movement of an airplane?

• drag

• lift

• thrust

• gravity

What is the term for a friction force that opposes the motion of an object through a fluid?

• fluid friction

• air friction

• rolling friction

• static friction

What is the term for a push or pull exerted on an object?

• force

• momentum

• acceleration

• velocity

What is the term for the motion of a falling object when the only force acting on it is gravity?

• free fall

• acceleration due to gravity

• terminal velocity

• ballistic motion

What is the term for a force that opposes the motion of an object?

• friction

• gravity

• air resistance

• tension

What is the term for the force of attraction among all objects?

• gravity

• electromagnetism

• friction

• inertia