Collisions

(Select All That Apply) Bumpers are a key feature on a car to try and prevent injury and keep people safe. Which type of bumper is the least likely to keep the passengers safe in an accident?

• a bumper that is rigid

• a bumper that crumples

• a bumper made out of solid steel

• a bumper made out of soft aluminum

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

True or False: In a crash, a lighter car is always safer than a heavier car?

• True

• False

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

(select all that apply) Which of the following concepts are used to analyze collisions?

• forces

• motion

• acceleration

• velocity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A change in motion means and object is? (Which of the following does not apply?)

• speeding up

• slowing down

• changing direction

• statically charged

Tags

NGSS.MS-PS2-2

Which of the following is Newton's 1st law of motion?

• an object at rest stays at rest and an object in motion stays in motion until acted upon by a force.

• a force is an interaction between 2 objects

• the force on an object is mathematically related to how fast and hard a mass hits it.

A snowball is thrown at Mr. Williams and smacks him right in the back and explodes in a cloud of snow. What’s true about the strength of the forces in this situation?

• The force of the snowball was greater than Mr. Williams

• The force of Mr. Williams was greater than the snowball

• The force of both Mr. Williams and the snow ball are equal

• The force of the snowball made Mr. Williams cry a little

Tags

NGSS.MS-PS2-1

Which of the following are an examples of an elastic collision? (select all that apply)

• When a bowling ball hits a pin

• When soft clay balls hit each other

• When pool balls hit each other

• When a snow ball smashes against a wall

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-5

Which of the following is Newton's 3rd law of motion?

• Objects in motion or at rest stay in motion or at rest until a acted upon by another force.

• The force on an object is mathematically related to its acceleration and mass

• always an interaction between two objects

Tags

NGSS.MS-PS2-1

Which of the following are examples of inelastic collisions? (select all that apply)

• When a bowling ball hits a pin

• When you flop on the couch and sink into the cushion

• When a bat hits a ball

• When a soft clay ball hits another soft clay ball

Tags

NGSS.HS-PS2-2

Which of the following are examples of Normal Force? (select all that apply)

• your dinner sitting on the table

• jumping on a trampoline

• swimming in a pool

• a Chromebook sitting on your table