Test - Forces Flashcards
1
Q
- An object in motion with no unbalanced forces acting on it will
A
continue to move in its path at a constant speed.
2
Q
7.An astronaut planing a trip to a newly-discovered planet. According to the law of Universal Gravitation, the astronaut’s weight on the new planet will be greater than his weight on earth if:
A
The new planet has more gravity than earth.
3
Q
8.If the same force is each of the balls pictured below, which one will have the LEAST acceleration.
A
M = 7.3kg
4
Q
9.A baseball player swings his bat and misses the ball but hits a fly that was hovering over home plate.
A
Larger
5
Q
- When two forces on the same object are equal and opposite, these forces are called ______ forces.
A
Balanced
6
Q
- What is the weight of a 25kg box with 800N to the right.
A
245N
7
Q
- Consider a watermelon that starts from rest and is dropped straight down from a tall building. Air resistance can be ignored. Is the statement the watermelon falls with a constant velocity false.
A
Yes
8
Q
- If a block with the acceleration of 1m/s2, 3N right, and 5N left. What is the mass?
A
2kg
9
Q
- A student drops a feather and rock at the same time from Mrs. Taylors window. If air resistance wasn’t a factor, what should she observe
A
Ddd
10
Q
- Tendency of an object to resist changes in motion.
A
Inertia
11
Q
- A net force acting on an object causes the object to accelerate in the direction of net force.
A
Newtons 2nd Law
12
Q
24.
A
24.
13
Q
25.
A
25.
