Test - Forces Flashcards
(13 cards)
3. An object in motion with no unbalanced forces acting on it will…
Continue to move in its path at a constant speed pg.23
5. The relationship among mass, force, and acceleration is explained by _____
Newton’s 2nd Law of Motion. Pg.22
6. For any object, the greater the force that’s applied to it, the greater it’s ____ will be.
Acceleration. Pg.20
8. Of the same force is applied to each of the balls pictured below, which one will have the LEAST acceleration?
Bowling ball. Pg.20
9. 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…
Larger. Pg.22
12. Which statement is FALSE?
Weight is a constant no matter where you are located. Pg.23
15. What is the weight of the box in the picture?
245 N. (I worked it myself)
17. Consider a watermelon that starts from rest and is stopped straight down from a tall building. Air resistance can be ignored. Which statement about the watermelons motion is FALSE?
The watermelon falls with a constant velocity pg.18
18. A man weighing 800 N is standing on a chair. In order to support the man, what force if the chair exerting?
800 N up. Pg.23
23. A student drops a feather and rock at the same time from Mrs. Taylor’s window. If air resistance wasn’t a factor, what should she observe?
The rock and feather fall at the same rate. Pg.22
24. In the picture, if the card were quickly pulled off the cup like the arrow suggests, what property would explain why the coin falls into the cup rather than moving with the card?
Inertia. Pg.23
31. A net force acting on an object causes the object to accelerate in the direction of the net force.
Newton’s 2nd Law. Pg.22
32. Related to the amount of force needed to change an objects motion.
Momentum. Pg.23
