Air, water resistance and upthrust

What is the force that opposes the motion of an object through water?

• Drag

• Lift

• Friction

• Thrust

Which force acts against the motion of an object through the air?

• Gravity

• Friction

• Magnetism

• Air resistance (drag)

What force pushes an object upwards when submerged in a fluid?

• Thrust force

• Buoyancy force

• Lift force

• Gravity force

Friction is a force that opposes the motion of objects in contact. True or False?

• False

• Maybe

• True

• Sometimes

What is the unit of measurement for water resistance?

• furlongs

• inches

• atmospheres (ATM) or meters (m)

• feet

Air resistance increases with the speed of an object. True or False?

• True

• Sometimes

• Maybe

• False

What is another term for upthrust?

• skyward push

• buoyancy

• elevation force

• upforce

Which surface produces more friction: rough or smooth?

• Rough

• Polished

• Shiny

• Slippery

How can you reduce air resistance on a moving object?

• Streamline the shape of the object to minimize drag.

• Increase the weight of the object to counteract air resistance.

• Add rough edges to the object to disrupt airflow.

• Paint the object with bright colors to reduce air resistance.

What is the formula to calculate frictional force?

• Frictional Force = Tension x Angle

• Frictional Force = Mass x Acceleration

• Frictional Force = Coefficient of Friction x Normal Force

• Frictional Force = Work / Distance