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Bounces, Kicks and Sprints: Following the Energy

Grade 6 practice: ball drops on four surfaces, a soccer kick and a sprint show that energy is transferred whenever an object's kinetic energy changes.

Grade 6ScienceInteractive · Printable

Aligned toMS-PS3-5

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What’s included

Single worksheet
Auto-graded online
1 NGSS standard
Printable answer key
10 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 6
Subject: Science
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Short answer

About this worksheet

What students practice

Students use bounce and speed data to tell when an object's kinetic energy increases or decreases.
Students identify evidence that energy was transferred to or from a moving object.
Students argue from evidence that energy lost by a ball goes into its surroundings.

How to use

Read the passage together and review that kinetic energy depends on an object's mass and speed. Students can answer on their own, then compare their evidence in pairs.

Curriculum

NGSS standard covered

MS-PS3-5

Argue from evidence that when an object's kinetic energy changes, energy is transferred to or from the object.

Preview

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Name Date

Bounces, Kicks and Sprints: Following the Energy

Use sports data to show where energy goes when an object speeds up or slows down.

Station 1: The bounce test

Read the passage and the bounce table. Use them to answer questions 1–4.

Sports Science Day in the Field House

1Once a year, Coach Ingrid Halvorsen turns the school field house into a sports science lab. Students rotate through stations with tape measures, a thermal camera and phones that film in slow motion. Sixth grader Yusuf Adeyemi kept the data for his group.

2At Station 1, the group dropped the same basketball from a height of 2.0 m onto four surfaces: the wood court, the rubber running track, a patch of artificial turf and a thick foam gym mat. Because the drop height was the same, the ball was moving at the same speed, about 6 m/s, each time it hit a surface. A phone filmed each bounce in front of a meter stick so the group could read how high the ball rose. They also wrote down what they heard and saw. After 50 drops on the same spot of the mat, they pointed the thermal camera at it.

3At Station 2, Coach Halvorsen's slow-motion video showed a student kicking a soccer ball that sat still on the turf. The moving part of the kicker's leg has a mass of about 3 kg, and the ball has a mass of about 0.43 kg. The video measured the speed of the foot just before and just after it touched the ball, and the speed of the ball as it left the foot.

4At Station 3, a runner crouched in the starting blocks on the track. At the signal she pushed off and reached 7 m/s in about 3 seconds. Afterward her breathing and heart rate were much faster, and her skin felt warm.