s2w1 Newton's third law and Momentum

Last updated 8 months ago

21 questions

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0

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4

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s2w1 Newton's third law and Momentum

Last updated 8 months ago

21 questions

A BIG 18 wheeler tractor trailer and a SMALL Mini Cooper are both driving alongside each other on a highway, and both have to come to a stop because of an accident up ahead.

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Explain WHY your chosen vehicle has more inertia and what that means as each vehicle comes to a stop. Be sure to focus on explaining INERTIA in your answer.

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Explain why when two objects collide one object moves faster than the other, and yet Newton's 3rd law says the forces on each object are the same.

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Read through the first 6 pages of the chapter 5: momentum. Do you have any questions?

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Momentum can be defined as " _______ in _______ "

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Two vikings throw their glasses down with the same amount of force. They have the same momentum right before they hit the ground. One viking is on tile, his glass breaks. The other viking is on carpet, his glass does not break. Explain why the second glass doesn't break in terms of force, momentum or impulse.

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A ball falls. at a certain distance A above the ground, it has a velocity of .3m/s down. Once it hits the floor and bounces, at point B above the ground it reaches a velocity of .3m/s up. Does it have the same momentum at point A and B? explain why.

A BIG 18 wheeler tractor trailer and a SMALL Mini Cooper are both driving alongside each other on a highway, and both have to come to a stop because of an accident up ahead.

Which vehicle has more inertia as they come to a stop?

Tractor Trailer

Mini Cooper

They have the same inertia

Explain WHY your chosen vehicle has more inertia and what that means as each vehicle comes to a stop. Be sure to focus on explaining INERTIA in your answer.

When forces are balanced, they

have no effect on the object

don't cause any change in the motion of an object

will always keep the object stationary

both b and c are correct

A combination of all the forces acting on an object is called

balanced force

net force

unbalanced force

gross force

When the net force on an object is zero, the object's motion will

change

stop

not change

accelerate

To find the net force on an object:

divide the larger force by the smaller one

multiply the forces together

combine the amounts of the forces acting on the object

always subtract the amounts of the forces

If you are pushing a box toward your friend with a force of 20 N, and your friend is pushing the box toward you with a force of 30 N, what will happen to the box?

The box will move toward you with a force of 10 N.

The box will move toward you with a force of 50 N

The box will move toward your friend with a force of 10 N.

The box will move toward your friend with a force of 50 N.

If an object is moving forward with a constant velocity of 12m/s, what kind of forces are acting on the object?

Balanced force

Unbalanced forces

If an object is stationary, what kind of forces are acting on it?

Balanced forces

Unbalanced forces

For a given acceleration, the mass of an object is _________________ the force of that object.

A. the same as

B. inversely proportional to

C. directly proportional to

For a given resultant force, the acceleration of an object is _________________ the mass of that object.

A. the same as

B. inversely proportional to

C. directly proportional to

If you hit a wall with a stick with 250N of force how much force does the wall put on the stick?

A force greater than 250N

A force less than 250N

A force equal to 250N

Explain why when two objects collide one object moves faster than the other, and yet Newton's 3rd law says the forces on each object are the same.

Which of the following is the kind of force pair described by the video?

The force of gravity on a person/the force of the floor pushing back on the person

The force of friction on an object from a surface/ the normal force of the object on the surface

the force of a ballroom dancer pushing his partner's hand in the air/ the force of the ballroom dancer's partner pushing her partner's hand in the air

the force of a ball as it falls/the force of a ball as it rebounds

Read through the first 6 pages of the chapter 5: momentum. Do you have any questions?

is momentum a scalar or a vector?

scalar

vector

both

Momentum can be defined as " _______ in _______ "

What is the formula for momentum?

John and Jane put the same amount of force on their equal size/equal mass boxes, which moves across the ice rink in their perfect physics land. John pushes for 3 minutes, while Jane pushes for 6 minutes. Which box is going faster after 10 minutes?

John

Jane

Same velocity

Two vikings throw their glasses down with the same amount of force. They have the same momentum right before they hit the ground. One viking is on tile, his glass breaks. The other viking is on carpet, his glass does not break. Explain why the second glass doesn't break in terms of force, momentum or impulse.

A ball falls. at a certain distance A above the ground, it has a velocity of .3m/s down. Once it hits the floor and bounces, at point B above the ground it reaches a velocity of .3m/s up. Does it have the same momentum at point A and B? explain why.

Which vehicle has more inertia as they come to a stop?

Tractor Trailer

Mini Cooper

They have the same inertia

When forces are balanced, they

have no effect on the object

don't cause any change in the motion of an object

will always keep the object stationary

both b and c are correct

A combination of all the forces acting on an object is called

balanced force

net force

unbalanced force

gross force

When the net force on an object is zero, the object's motion will

change

stop

not change

accelerate

To find the net force on an object:

divide the larger force by the smaller one

multiply the forces together

combine the amounts of the forces acting on the object

always subtract the amounts of the forces

If you are pushing a box toward your friend with a force of 20 N, and your friend is pushing the box toward you with a force of 30 N, what will happen to the box?

The box will move toward you with a force of 10 N.

The box will move toward you with a force of 50 N

The box will move toward your friend with a force of 10 N.

The box will move toward your friend with a force of 50 N.

If an object is moving forward with a constant velocity of 12m/s, what kind of forces are acting on the object?

Balanced force

Unbalanced forces

If an object is stationary, what kind of forces are acting on it?

Balanced forces

Unbalanced forces

For a given acceleration, the mass of an object is _________________ the force of that object.

A. the same as

B. inversely proportional to

C. directly proportional to

For a given resultant force, the acceleration of an object is _________________ the mass of that object.

A. the same as

B. inversely proportional to

C. directly proportional to

If you hit a wall with a stick with 250N of force how much force does the wall put on the stick?

A force greater than 250N

A force less than 250N

A force equal to 250N

Which of the following is the kind of force pair described by the video?

The force of gravity on a person/the force of the floor pushing back on the person

The force of friction on an object from a surface/ the normal force of the object on the surface

the force of a ballroom dancer pushing his partner's hand in the air/ the force of the ballroom dancer's partner pushing her partner's hand in the air

the force of a ball as it falls/the force of a ball as it rebounds

is momentum a scalar or a vector?

scalar

vector

both

What is the formula for momentum?

F=m·v

Fnet=m·v

P=m·v

P=m·a

Pnet=m·a

John and Jane put the same amount of force on their equal size/equal mass boxes, which moves across the ice rink in their perfect physics land. John pushes for 3 minutes, while Jane pushes for 6 minutes. Which box is going faster after 10 minutes? 

John

Jane

Same velocity