Unit 4 Forces ~newton's laws of motion

If a line backer and ballerina collide in the hall way who will experience the greater force? (consider newtons 3rd law)

• the line backer

• ballerina

• both experience the same force

• Neither will experience a force

Tags

NGSS.MS-PS2-1

If a line backer and ballerina collide in the hall way who will APPEAR to have more damage? (consider newtons 2nd law)

• the line backer

• ballerina

• both experience the same force

• Neither will experience a force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

If friction force is 12N and the applied force is 12N. How does frictional force effect a MOVING object?

• It can cause the object move at a constant speed

• It can causes the object to stop moving completely

• It can cause an object to become heavier

• It has no effect, frictional force has no influence

Why must a plain drop supplies before the plane is directly over the target spot?

• Newton's 3rd Law: Dropping a box early will cause the supplies to arrive early

• Newton's 2nd Law: The mass will effect the acceleration. The box could fall to fast

• Newton's 1st Law: the inertia of the box will cause it to have a forward velocity

• they shouldn't drop it early, newton's laws have no effect

Which law applies: The force you exert to bounce on a bed to jump is the same force your body receives to lift you off the bed.

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

Tags

NGSS.MS-PS2-1

Which law applies: A football player and a cheerleader both attempt to push a 200kg blocking dummy. The foot ball player can push the dummy down the field while the cheerleader bounce backwards.

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

Tags

NGSS.MS-PS2-1

Why: A football player and a cheerleader both attempt to push a 200kg blocking dummy. The foot ball player can push the dummy down the field while the cheerleader bounce backwards. Why?

• he has great acceleration

• he has greater mass. producing a great force

• he is mean

• she is a weak punny girl

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which law applies: Carter is riding his bike. His bike hits a curb coming to a stop. Carter goes flying over the bike landing on his face.

• 1st Law

• 2nd Law

• 3rd Law

• 4th Law

Tags

NGSS.HS-PS2-1

why does Carter fly off the bike when it stops?

• mass

• inertia

• acceleration

• he's just doing it wrong

If a car is in motion then the net force acting on the car must be unbalanced

• True, because only unbalanced force can keep an object moving

• False, because the net force can be balanced and the object could move at a constant velocity

• False, because Net Force doesn't effect an objects motion

• True, because if force are balanced the object is sitting still

Tags

NGSS.MS-PS2-2