Test - Forces Flashcards
1
Q
- The relationship among mass, force, acceleration is explained by what?
A
C. It is explained by Newton’s 2nd law of motion.
2
Q
- If the same force is applied to a baseball a tennis ball a Golfball and a Bowling ball which one will have the least acceleration?
A
D. The bowling ball will.
3
Q
- A baseball player swings his bat 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 what?
A
B. The acceleration would be larger
4
Q
- A 500 N force is applied to a 25 m/s^2 object. The mass of the object is what?
A
D. 20kg
5
Q
- Which statement is false?
A
C. Weight is a constant no matter where you are located
6
Q
- What is the acceleration of the box in the picture?
A
D. 12m/s👽^2
7
Q
- What is the weight of the box in the picture?
A
D. 245N
8
Q
- Consider a watermelon that starts from rest is dropped straight down from a tall building and air resistance is ignored. Which statement about the watermelons motion is false?
A
A. The watermelon falls with a constant velocity.
9
Q
- A man weighing 800N is standing on a chair. In order to support the man what force is the chair exerting?
A
C. 800N up
10
Q
- If the block in the picture above has an acceleration of 1 m/s squared what would be the blocks mass?
A
B. 2kg
11
Q
- An object that is falling freely has a constant what?
A
C. Acceleration
12
Q
- An object will move at a constant velocity unless an unbalanced force acts upon it.
A
B. Gravity
13
Q
- Tendencies an object to resist changing in motion
A
D. Inertia
14
Q
- The attraction any two objects have on one another
A
B.
15
Q
- Related to the amount of force needed to change an objects motion.
A
I. Momentum
