Chapter+2,+Section+3

What do you think now:

Force: Any interaction between any two objects

The tennis ball has less mass to it, so therefore it would require less force to move it faster. The bowling ball has a greater mass, so the tennis racket would have less of an effect on the bowling ball.

Mass of an object forces exerted acceleration. (Involves its inertia, resistance it has to change)

Investigation:

2. A. The cart goes at a slow velocity with a small bend.

3.

A. With a greater bend, the faster the cart will travel.

B. The cart was traveling at a constant velocity.

C. The cart was traveling at a faster velocity, but it was a little more random in direction because the rotating wheels.

D. The greater the constant force pushing on the object, the faster it accelerates.

4.

A. we used a small cart, which had about half the mass, and it traveled a lot faster with less force compared to the larger cart.

5.

B. When equal amounts of constant force are used to objects of greater mass, the more massive object accelerates slower.

6.

A. I would conclude that the smaller object would accelerate at a much greater velocity.

8. A. The ruler bent a slight bit because of the weight of the penny.

9.
 * Every time you add a penny, the ruler bends a little more
 * Smaller amounts of coins, such as one or two, represent a small force. Larger amounts of coins, such as three or four, represent a larger force.
 * Gravity pulling on the pennies is the force that is making the ruler bend.

Checking Up

1. A=F/M

2. When there is more people in the car, the car is heavier, which means the acceleration is lower.

Physics to go

1. A. 350 n B. 80 g C. 10 m/s/s D. -15 m/s/s E. -3000 n

3. 140 m/s/s

5. A. The bowling ball, which has a greater mass, if traveling at the same velocity as the baseball, has more energy behind it. Since less energy is in the ball, it takes less force to stop the baseball. Since the bowling ball has a greater mass and same velocity, it has significantly more energy, which would require more force to stop it.

B.