Scientist’s Name _______________________
Pre
Post
Assessment on Forces and Motions
1. You are racing a toy car down the hallway. If you go 10 meters in 5 seconds, what is
your speed? (Remember speed equals distance divided by time.)
a. 2 meters per second
b. 2 miles per hour
c. 50 meters per second
2. You are zooming down the sidewalk on your cool new skateboard when your wheel
suddenly gets stuck in a crack. Why does your body go flying forward?
a. There is a net force pushing you off your skateboard.
b. Your inertia keeps you moving forward.
c. Someone pushed you.
3. The force that pulls falling objects toward Earth is called
a. gravity
b. net force
c. acceleration
4. If you drop a small ball and a large ball from the top of the slide which one will hit
the ground first?
a. The small ball will hit the ground first.
b. The large ball will hit the ground first.
c. Both of them will hit the ground at the same time.
MullisAngela
Saturday, September 7, 2013 11:13:49 AM ET
5.
image from : ffden-2.phys.uaf.edu
When the orange car hits the green car, what will happen to the orange car?
a. The orange car will travel a few feet in the opposite direction from the way it was
traveling.
b. The orange car will stop completely.
c. The orange car will keep traveling in the same direction.
6. Teacher Demonstration #1:
The teacher will place a car on the table with a string attached to it. She will put
washers on the string while you observe what happens as more weight is added.
What happened to the car and WHY? Draw what you saw and label using vocabulary
from our unit.
MullisAngela
Saturday, September 7, 2013 11:13:49 AM ET
7.Teacher Demonstration #2:
The teacher will allow the car to travel on a ramp. What happened to the car and
WHY? Draw what you saw and label using vocabulary from our unit. Draw arrows to
show the motion observed.
MullisAngela
Saturday, September 7, 2013 11:13:49 AM ET