Flashcards
Science Questions
Cards in this deck (62)
- 1What does a parachute do?It increases drag so the skydiver can have a safer landing.
- 2How many forces of flight are there? Which ones?4. Weight, lift, drag, thrust.
- 3How does a piolet make a balloon go up?They add helium.
- 4Hot air is _____ than cold air.less dense.
- 5When air is heated...It expands
- 6What gas is used in Blimps? Why do they use that gas?They use helium because it is cheap and light.
- 7How does a pilot make a blimp go down?They take out some helium.
- 8How many propellers does a helicopter have?2
- 9How does a helicopter create lift?It uses Brounllie's principle.
- 10What are the 3 main movements of an airplane?Yaw, roll & pitch.
- 11What is Newton's third law of motion?Every action has an equal and opposite reaction.
- 12How do rockets fly?Using thrust.
- 13How does a flying squirrel fly?It uses lift.
- 14How does a parachute fly?Using drag.
- 15How does a Helicopter fly?Using Lift
- 16How does a hot air balloon fly?Using lift.
- 17How does a bird fly?Using lift.
- 18How does a glider fly?Using thrust.
- 19How does a blimp fly?Using thrust.
- 20How does a airplane fly?Using lift.
- 21What is the definition of parachute?A parachute is a device that is used to slow down an object that is falling towards the ground.
- 22What is the definition of rocket?The word can describe a type of engine. The word rocket also is used to talk about a vehicle that uses a rocket engine.
- 23What is the definition for Elevator? ( aircraft )It control the pitching motion of the aircraft.
- 24WHat is the definition of Ailerons?It is used to control lateral balance.
- 25What is the definition of rudder?It is used to for yawing motion of the aircraft.
- 26What is the definition of control surfaces?It is used to change the attitude of an aircraft.
- 27What is the definition of fuselage?The main body of an aircraft.
- 28True or False: opening your parachute decreases the air resistance while skydiving.False
- 29True or False: when a skydiver falls during a freefall, they can travel up to 290 km/h.True
- 30True or False: we can position our bodies like a starfish to increase air resistance.True
- 31True or False: increasing air resistance while falling will slow down our fall.True
- 32True or False: water is a fluid but gas is not.False
- 33What is terminal velocity?The maximum speed an object can reach while falling.
- 34Are parachutes aerodynamic?No, because they are built to increase drag.
- 35What is a lighter than air flying device?An airship that generates lift.
- 36How does a lighter than air flying device achieve lift?Light the torch, heat the air inside the balloon and make it less dense.
- 37True or false: Helium is rarely used in airships because it is heavy and expensive.False.
- 38True or false: Air can be heated to make it less dense.True
- 39True or false: an airship is a lighter than air flying device.True
- 40True or false: When an airship is negatively buoyant, it will floatfalse
- 41True or false: to go down in a hot air balloon, you need to add ice to the air.false
- 42How is a glider plane different from an airplane?It doesn't use an engine, it has a longer wing span and it uses the air as it's only thrust.
- 43How does a glider plane work?They use just the air around them to glide through the air and they have a massive wing span to capture and use more air.
- 44What is an spacecraft built to do?To travel in the air in a vertical motion that takes them out of Earth’s atmosphere and into space.
- 45How does a spacecraft achieve lift?They use rockets to propel the spacecraft with a lot of force into outer space. Rockets have extremely powerful engines. ( No Brounoulie’s Principle )
- 46What is a aircraft built to do?To travel in the air in a horizontal motion that takes them to a new place in the world
- 47How does a aircraft achieve lift?They use engines to generate thrust and wings to generate lift (Bernoulli's Principle)
- 48Why are spacecrafts and aircrafts designed differently? Why don't they look the same?Because aircrafts are built to go horizontally and fly in the air and in the atmosphere so they are build to help them achieve that. But spacecrafts are build to fly vertically and in a vacuum ( space ) and into space and they’re shaped to help them achieve that.
- 49How does the pilot make sure that the plane doesn't roll or lose balance laterally?Which controls do they use?They use the vertical stabilizer and the airerons so that the plane doesn’t roll or lose balance. The vertical stabilizer helps the plane from tipping side to side and the horizontal stabilizer helps it from tipping forwards and backwards.
- 50What is a floater aircraft?things that move through the air because they are being controlled by the winds.
- 51What is a glider?Things that have special parts that let them use the wind to help it stay in the air.
- 52What are powered flyers?Things that use body energy or an engine to get up into the air and stay there.
- 53What is drag?The force (resisting or friction) that works against an object as it moves through air to make it slow down; also called "air resistance."
- 54What is pitch?The up and down motion of the nose of a airplane.
- 55What does roll mean?The rotation ( rolling over ) of the body of the plane.
- 56What does yaw mean?The direction ( left or right ) that the nose ( point) of the plane turns towards.
- 57What is air pressureThe force of air pushing on objects.
- 58What is gravity?The force that pulls things down to Earth.
- 59What is lift?The force that works against gravity and helps things up.
- 60What is a rocket?An object pushed by an explosion of gasses and air.
- 61What is thrust?The force that pushes the plane forwards.
- 62What is heavinessWeight
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- Grade 6 Science Flashcards on Science Questions, created by Nikki Cheema on 13/01/2021.
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- Nikki Cheema
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