Test- Forces Flashcards
1
Q
- For any object, the greater the force that’s applied to it, the greater it’s __________ would be?
A
Acceleration
2
Q
- If the same force is applied to each of the balls, which will have the least acceleration?
A
Bowling Ball
3
Q
- A baseball player swings his bat and mrs. the barber his 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
4
Q
- A 500 N force is applied to a 25 m-s2 object. The mass of the object is what?
A
20 kg
5
Q
- The size of the gravitational force between 2 objecfs depend on their what?
A
Masses and the distance between them
6
Q
- What is the acceleration of the box?
A
12 m-s2
7
Q
- What is the weight?
A
245 N
8
Q
- Consider a watermelon that starts from rest and is dropped straight down from a tall building, air resistance is ignored?
A
The watermelon falls with a constant velocity is false
9
Q
- Tendency of an object to resist changes in motion?
A
Inertia
10
Q
- Attraction any 2 objects have on one another
A
Gravity
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
12
Q
- Related to the amount of force needed to change an objects motion
A
Momentum
13
Q
- What would be the speed of the falling skydiver after 5 seconds?
What speed will he eventually reach, what is this called?
Why does this occur?
A
49 m-s2
9.8
Gravity and air resistance
14
Q
- If a rock is skipped into a lake at 24 m-s2, with what force was the rock thrown?
A
42 N
15
Q
- A 2 N and 8 N force pull on an object to the right and a 4 N force pulls on the object to the left
What is the acceleration?
A
12 m-s2
