Question 1 (1 point)
saved
the path a projectile takes is known as the

question 1 options:

vertical component

trajectory

horizontal component

parabola

question 2 (1 point)
saved
which of the following is not an example of a projectile?

question 2 options:

a baseball that has been pitched

a rock being thrown over a bridge

a person sitting in a chair, not moving

a car driving off a cliff

question 3 (1 point)
saved
a plane is flying east when it drops some supplies to a designated target below. the supplies land after falling for 10 seconds. how high above the ground was the airplane when the supplies were dropped? (hint: d = 1/2gt2; g = -9.8 m/s2)

question 3 options:

120 meters

490 meters

980 meters

49 meters

question 4 (1 point)
as the supplies fell, they traveled 650 meters horizontally. how fast were the supplies and the airplane moving forward? remember that it took 10 seconds for them to reach the ground. (hint: v = d/t)

question 4 options:

65 m/s

6500 m/s

0.154 m/s

660 m/s

question 5 (1 point)
saved
a projectile has a vertical component and a horizontal component.

question 5 options:
true
false
question 6 (1 point)
saved
the shape of a projectile's trajectory is an ellipse.

question 6 options:
true
false
question 7 (1 point)
saved
which of the following is not true about a vertical component?

question 7 options:

the vertical component of a projectile changes due to gravity.

the vertical component acts the same as an object in free fall.

the vertical component always equals the horizontal component.

question 8 (1 point)
saved
during the course of trajectory, the horizontal component of the velocity is

question 8 options:

constant

increasing

decreasing

negative

question 9 (1 point)
saved

in the simulation above, as the projectile travels upward, how does the vertical velocity change?

question 9 options:

vertical velocity remains the same.

vertical velocity decreases.

vertical velocity increases.

vertical velocity is zero.

question 10 (1 point)

in the simulation above, as the projectile travels downward, how does the vertical velocity change?

question 10 options:

vertical velocity remains the same.

vertical velocity decreases.

vertical velocity is zero.

vertical velocity increases.

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

Red’s momentum vector before the collision is green’s momentum vector after the collision. question 1 options: equal to shorter than longer than question 2 (1 point) saved since green bounces off red, this must be an collision. question 2 options: explosion elastic inelastic question 3 (1 point) red transfers of its momentum to green during the collision. question 3 options: none all little most question 4 (4 points) why does red transfer all its momentum to green? back up your answer with information from the simulation. write at least 2 sentences. question 4 options: skip toolbars for . more insert actions. more text actions. more paragraph style actions. question 5 (1 point) now make red much heavier than green. answer the questions below to describe how both red and green behave after the collision. question 5 options: slowed down sped up kept the same velocity question 6 (1 point) green sped up during the collision as it question 6 options: gained momentum from red lost momentum to red maintained a constant momentum. question 7 (1 point) after the collision . . question 7 options: both green and red moved to the right. both green and red stopped as they have lost all momentum. red stopped and green moved to the right. red bounced off green and went to the left. green moved to the right. question 8 (4 points) only some of red’s momentum was transferred to green. why did this occur? back up your answer with information from the simulation. write at least 2 sentences. question 8 options: skip toolbars for . more insert actions. more text actions. more paragraph style actions. question 9 (1 point) now make red much lighter than green. answer the questions below to describe how both red and green behave after the collision question 9 options: green sped up after the collision therefore it must have gained momentum. green sped up after the collision therefore it must have lost momentum. green slowed down after the collision therefore it must have gained momentum. green slowed down after the collision therefore it must have lost momentum. question 10 (1 point) since green gained momentum, red had to have momentum because you cannot create or destroy momentum. question 10 options: gained lost kept the same amount of question 11 (1 point) since green was so much and harder to move, it caused red to bounce back to the left giving red . question 11 options: heavier . . . . positive lighter. . . . negative lighter. . . . positive heavier . . . . negative question 12 (4 points) now, click on more data at the bottom of the sim. play with different numbers for the masses and starting velocities. you can even make the starting velocities negative! tell me one thing you discovered by adjusting the speeds and masses. write at least 2 sentences. be specific and use words like velocity, momentum, mass, increased, decreased, etc. 13. true or false: when red and green collide, they stick together. question 13 options: true false question 14 (1 point) the velocity of red & green after the collision is the velocity that red started off with. question 14 options: larger than smaller than equal to question 15 (1 point) the velocity after the collision was less because the mass has question 15 options: stayed the same decreased increased question 16 (1 point) the momentum before the collision was the momentum after the collision. question 16 options: larger than smaller than equal to conclusions question 17 (4 points) how are elastic and inelastic collisions different? give two or more ways. your answer should have at least 2 sentences. question 18 (4 points) give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.

What are some properties of transverse waves?