Projectile Motion and Gravity
In this physics lab student will investigate how gravity affects an object that falls from a resting state and how it affects an object that is projected out from the same resting state. Students will predict which object will hit the ground first if set in motion at the same time.
Students will set 2 objects in motion at the same time. One from a state of rest and a second that is projected outward from the same level at the same time. Student will use observation to determine which will object hits the ground first.
Vocabulary: gravity, acceleration, projectile motion.
Context for Use
This activity is used after discussing the concept of gravity and acceleration. This activity is very straight forward and does not need to be adapted.
Resource Type: Activities:Lab Activity
Grade Level: Middle (6-8)
Description and Teaching Materials
Place one object on the ruler and the other next to the ruler and the edge of the table.
Quickly move the ruler to strike the object on the desk.
Have students listen/watch both objects to determine which object hits the floor first.
Prior to conducting the activity have students predict which object will hit the floor first.
This activity can be done as a class demonstration or in small groups.
Teaching Notes and Tips
Motion: 188.8.131.52.3 Recognize that some forces between objects act when the objects are in direct contact and others, such as magnetic, electrical and gravitational forces can act from a distance.