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Earth exerts a downward (towards the ground or Earth) force on your body. At the same time, your body exerts an upward (towards your body) force on the Earth. Your body is the one that seems to move, however, because the mass of your body is so much less than the mass of the Earth.
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How big is the upward force compared to the downward force?
Down ward force is greater than upward force because everything on earth, obeys the laws of gravity, and for a rocket to take off from earth it needs more energy in other to fight the earths gravitational force but despite fighting the gravitational force it still doesnt take off with a full speed, But for a body of mass to fall from the atmosphere its falls with a great speed due to the force of the earths gravity.
A weight reading on a scale shows is the upward force or downward force oexerted by the scale?
downward force
When you push downward on earth to make a pole vault does earth exert an equal force on the pole?
Yes, otherwise the pole would move downwards
What is the ability of a liquid to exert an upward force on an object?
"buoyancy"
Why is the buoyant force an upward force?
Because it's counteracting gravity - which is a downward force.
Is an upward force?
No, gravity is a downward force.
In what directions does a solid exert force?
downward
How big is the upward force compared to the downward force?
Down ward force is greater than upward force because everything on earth, obeys the laws of gravity, and for a rocket to take off from earth it needs more energy in other to fight the earths gravitational force but despite fighting the gravitational force it still doesnt take off with a full speed, But for a body of mass to fall from the atmosphere its falls with a great speed due to the force of the earths gravity.
A weight reading on a scale shows is the upward force or downward force oexerted by the scale?
downward force
Why can you jump higher on the moon than the earth?
When you jump, you exert a force greater than the force of gravity to achieve a net positive upward acceleration - at least until your feet leave the ground and you quit exerting force. The net upward force is Fnet = (force you push off with) - (force of gravity) Because the moon has less mass than the earth, the force of gravity is less. As a result, the force you exert to jump on earth would give a higher net upward acceleration on the moon and allow you jump higher.
What is the relationship between downward force and upward force?
Normal Force
What is the upward force that fluids exert on all matter?
bouyant force
What is ability of a fluid to exert an upward force on an object?
Buoyant force.
What is the ability of a fluid to exert an upward force on an object.?
Buoyant force.
When you push downward on earth to make a pole vault does earth exert an equal force on the pole?
Yes, otherwise the pole would move downwards
How do action-reaction explain how a rocket lift off?
As a rocket burns fuel, it expels exhaust gases. When the gases are forced out of the rocket, they exert an equal and opposite force on the rocket. A rocket can rise into the air because the gases it expels with a downward force exert an equal but opposite force on the rocket. As long as this upward pushing force, called thrust, is greater than the downward pull of gravity, there is a net force in the upward direction. As a result, the rocket accelerates upwards.-information from Prentice Hall, Science Explorer: Physical Science
How do action-reaction explain how a rocket lifts off?
As a rocket burns fuel, it expels exhaust gases. When the gases are forced out of the rocket, they exert an equal and opposite force on the rocket. A rocket can rise into the air because the gases it expels with a downward force exert an equal but opposite force on the rocket. As long as this upward pushing force, called thrust, is greater than the downward pull of gravity, there is a net force in the upward direction. As a result, the rocket accelerates upwards.-information from Prentice Hall, Science Explorer: Physical Science
