Force Test A Flashcards
1
Q
- The size of the gravitational force between two objects depends on their…
A
Masses and the distance between them
Concept 3, pg. 3
2
Q
- An astronaut is planning a trip to a newly discovered planet. According to the Law of universal gravitation, the astronauts weight will be greater than his weight in earth if…
A
The new planet has more gravity than earth
Concept 3. Pg. 3
3
Q
- A baseball player swings his ball and misses the ball but hits a fly that was hovering over home plate. The acceleration of the fly compared to what the acceleration of the ball would have been with the same force applied to it would be…
A
Larger
Concept 3, pg.
4
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 watermelon’s motion is false?
A
Watermelon falls with constant velocity.
Concept 3. Pg 2
5
Q
- A man weighing 800N is standing on a chair. In order to support the man, what force is the chair exerting?
A
800N up
Concept 3. Pg 1
6
Q
- The attraction any two objects have on one another
A
Gravity
Concept 3. Pg 3
7
Q
- Related to amount of force needed to change an object’s motion.
A
Momentum
Concept 3. Pg 4
8
Q
- (A)Answer the following according to the data table of a skydiver’s motion to the right. What would be the speed of the falling skydiver after 5 seconds?
A
S= 49.00m/s
9
Q
- (B)what speed will the skydiver eventually reach? What is the speed called?
A
55m/s
Terminal velocity
