Name of Investigation - 1st Law of Motion - Inertia

Fill in the blanks below with A,B,C,D.
A. An object moves in the same direction as its force.
It accelerates in the direction that you push/pull it.
B. Acceleration is directly proportional to the force.
If you push twice as hard, it accelerates twice as much.
C. Acceleration is inversely proportional to the mass of the object.
If it has twice the mass, it accelerates half as much.
D. Force = Mass x Acceleration
1 ________ You kick the soccer ball and it moves forward.
2. _______ You hit a ball with a stick and it rolls 3 feet. Then you hit a ball as hard as
you can with a baseball bat and it goes 20 feet.
3. _______ You throw a dart at a window and it doesn’t break the window. You throw a
baseball at the same speed and it does break the window.
4. _______You push a car and a chair with wheels on it with the same amount of force.
The car barely moves but the chair scoots across the room.
5. _______You are playing soccer and you control the ball by gently kicking the ball
down the field.
6. _______You are playing soccer and you see an opportunity to make a goal so you kick
as hard as you can and score!
7. ______ You gently throw a dart at a target. It bounces off. The you speed up your
throw causing more force and the dart sticks into the target.
8. Why does the 2 nd Law of Motion explain how a tiny little bullet can go through a
wooden door causing a hole and a bigger bowling ball doesn’t go through the door?