Jessica, The acceleration of gravity is the acceleration for any object moving under the sole influence of gravity. It is such an important quantity that it is often referred to using the symbol "g". The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.
Tegan, According to Newton’s second law of motion, force = mass X acceleration, meaning that mass and acceleration are inversely proportional. A constant force applied to two bodies of different masses leads to higher acceleration in the less massive body than in the more massive one.
Brittany, All objects free fall at the same rate regardless of their mass because the 9.8 N/kg gravitational field at Earth's surface causes a 9.8 m/s/s acceleration of any object placed there, we often call this ratio the acceleration of gravity. (Read my reply above for more information about the acceleration of gravity)
Katelyn, When an object is dropped it gets faster and faster as it falls. This happens because their weight (the force of gravity) pulls them down towards the centre of the Earth. Frictional forces such as air resistance, act against the direction of motion, and tend to slow the object down.
what is the acceleration of gravity?
ReplyDeleteThis comment has been removed by the author.
DeleteJessica,
DeleteThe acceleration of gravity is the acceleration for any object moving under the sole influence of gravity. It is such an important quantity that it is often referred to using the symbol "g". The numerical value for the acceleration of gravity is most accurately known as 9.8 m/s/s.
What is the difference between mass and weight?
ReplyDeleteRowan,
DeleteMass is a measure of how much matter an object has. Weight is a measure of how strongly gravity pulls on that matter.
What role does mass play in the acceleration of an object?
ReplyDeleteTegan,
DeleteAccording to Newton’s second law of motion, force = mass X acceleration, meaning that mass and acceleration are inversely proportional. A constant force applied to two bodies of different masses leads to higher acceleration in the less massive body than in the more massive one.
Why do all objects fall at the same rate?
ReplyDeleteBrittany,
DeleteAll objects free fall at the same rate regardless of their mass because the 9.8 N/kg gravitational field at Earth's surface causes a 9.8 m/s/s acceleration of any object placed there, we often call this ratio the acceleration of gravity. (Read my reply above for more information about the acceleration of gravity)
How can friction or air resistance slow an object that is falling?
ReplyDeleteKatelyn,
DeleteWhen an object is dropped it gets faster and faster as it falls. This happens because their weight (the force of gravity) pulls them down towards the centre of the Earth. Frictional forces such as air resistance, act against the direction of motion, and tend to slow the object down.
If you were on the moon, would mass play a larger factor on the rate an object falls than it does on earth?
ReplyDeleteJacob,
DeleteMass is constant regardless of where you are in space, so the mass would be the same on the moon as it is on the earth.
Jacob,
ReplyDeleteMass is constant regardless of where you are in space, so the mass would be the same on the moon as it is on the earth.