Test - Forces Flashcards
1
Q
- The size of the gravitational force between two objects depends on their
A
Masses and the distance between them
2
Q
- An object that is falling freely has a constant what?
A
Acceleration
3
Q
- A 500 N force is applied to a 25m/s2 object. The mass of the object is
A
20kg
4
Q
- Consider a watermelon that starts from wrist wraps straight down from a tall building. Air resistance can be ignored. which statement about the watermelons motion is false
A
The watermelon falls at a constant velocity
5
Q
- What is the weight of the box in the picture
A
245N
6
Q
- Baseball player swings his bed and misses the ball but he’s a fly that was hovering home plate deceleration of the fly compared to what the acceleration of the ball would’ve been with the same force applied to it would be
A
Larger
7
Q
- The relationship among mass, force, and acceleration is explained by
A
Newton’s 2nd law
8
Q
- In the picture if the card were quickly pulled off the cop the arrow suggest what probably would explain why the coin falls into the cup rather than moving with the card
A
Inertia
9
Q
- When two forces on the same object are equal and opposite, these forces are called
A
Balanced
10
Q
- Tendency of an object to resist changes on motion
A
Inertia
11
Q
- A net force acting on an object causes the object to accelerate in the direction of the net force.
A
Newton’s 2nd law
