If Object A Exerts a Force on Object B, then Object B Exerts an Equal, Oppositely Directed, and Simultaneous Force on Object A Newton’s Third Law For Every.

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Presentation transcript:

If Object A Exerts a Force on Object B, then Object B Exerts an Equal, Oppositely Directed, and Simultaneous Force on Object A Newton’s Third Law For Every Action There is an Equal and Opposite Reaction

If your feet push down on the floor, what does the floor do? A.Nothing B.Absorbs the push C.Pushes up on your feet, but with less force D.Pushes up on your feet with an equal force E.Pushes up on your feet with greater force

Can the floor push up on your feet with a force greater than your weight? A.Yes, but nothing will happen B.Yes, you will accelerate up into the air C.No, it always equals your weight D.No, it can only equal or be less than your weight E.Yes, but only on a planet with stronger gravity

What is the force from that causes a car to accelerate down the road? A.The engine B.The transmission C.The pistons D.The road E.The tires

What is the force from that causes a swimmer to accelerate across a pool? A.The swimmer’s legs B.The swimmers arms C.The swimmer’s arms and legs D.Gravity E.The water

Which force probe will measure the greatest force? A.The one pulled by the teacher B.The one attached to the ring stand C.Both will measure the same force D.Either one depending on how the teacher pulls

Which force probe will measure the greatest force?

The Earth pulls on the Moon with gravity, causing it to orbit. What does the Moon do to the Earth? A.Pulls on the Earth with equal gravity, causing it to orbit B.Nothing, it is too small C.Pulls on the Earth with less gravity, having no effect D.Pulls on the Earth with less gravity, causing tides

The Earth orbits a point about ¾ of the distance from its center to its surface (not to scale)

The Earth pulls on you with the force of gravity, what is the reaction to this force? A.Normal force B.You pull on the Earth with an equal force of gravity C.You pull on the Earth with a smaller force of gravity D.Nothing, only the Earth has gravity

M Earth The Forces are the same but the Masses and Accelerations are different F = a Earth F M Person = a Person

A gun shoots a bullet, which received the greatest force? A.The bullet B.The gun C.Each received an equal force D.Depends on the size of the bullet

M Gun F = a Gun F M Bullet = a Bullet The Forces are the same but the Masses and Accelerations are different

A bug splatters on a windshield, which received the greatest force? A.The windshield B.The bug C.Each received an equal force D.Depends on the size of the bug

What was the last thing to go through the bug’s mind? His Butt!

M Car F = a Car F M Bug = a Bug The Forces are the same but the Masses and Accelerations are different

In the tug-of-war, what is the reading on the scale? A.0 N B.1000 N C.2000 N D.3000 N 1000 N

The tree pulls just like the tug-of-war team. If the pull is only from one side, the tension is zero.

What will the scale read that is pulled from both sides by 10 N weights? A.0 N B.10 N C.20 N D.30 N

What will be the effect of adding a sail to the fan cart? A.Slower B.Faster C.No effect D.First faster, then slower E.First slower, then faster