Test. - Motion Flashcards
1
Q
- What is the weight of the box that weighs 25 kg and 300 Newton’s to the right?
A
245 N
Picture on test
2
Q
- Consider a watermelon that starts from rest and is dropped straight down from a tall building. Air resistance can be ignored. Which statement about the watermelons motion is false?
A
The water melon falls with a constant velocity.
NB pg
3
Q
- A man weighing 800 N is standing on a chair. In order to support the man, what force is the chair exerting?
A
800 N up
Test
4
Q
- Tendency of an object to resist changes in motion is what?
A
Inertia
NB pg 27
5
Q
- The attraction of any two objects have on one another is what?
A
Gravity
NB pg 23
6
Q
- Rank the following objects from least inertia to the most inertia.
Truck, pencil, science book
A
- Pencil
- Science book
- Truck
Test
7
Q
38c. How does terminal velocity occur?
A
When air resistance and gravity become equal and you start falling at a constant velocity which is 55 m/s
NB pg 28
8
Q
- What unit measure momentum?
A
kg*m/s
NB pg 22
9
Q
- Which law occurs when someone isn’t wearing a seatbelt in a car and the car stops and the person flies forward?
A
The 1st law.
NB of 22
