Test 1

Question 1

% change

Answer 1

((final-initial)/initial) x 100

Question 2

units for length, time, etc are known as

Answer 2

fundemental units

Question 3

a=

Answer 3

vfinal-v initial/change of time

Question 4

When did Galileo die?

Answer 4

1642?

Question 5

a at the top of the trajectory

Answer 5

-10 m/s^2

Question 6

An object sliding down an incline without friction has the acceleration of

Answer 6

less than g

Question 7

A ping pong ball is thrown upwards to the air and comes back down. Is the magnitude of the ball’s acceleration greater on the way up or down?

Answer 7

Up

Question 8

If a train and a bug have a head-on collision, which one experiences greater impact force?

Answer 8

Same

Question 9

If an elevator descends with a higher velocity, the reading of the scale is ___ When it is descending in a constant speed, the reading of the scale is

Answer 9

Slightly decreased.
The same

Question 10

When a parachute is slowing down, the net force is

Answer 10

upwards

Question 11

A =

Answer 11

1/2 a

Question 12

v=

Answer 12

gt