gasilrich.blogg.se - Bouncing ball gravity lab

Help the children learn each other’s names (if they don’t know each other already).

Provide the balls and Follow the Bouncing Ball Children's Guide in a bag or bin, or place them at a table so that participants can access them.

With a permanent marker, label the low-bounce ball "Earth" and the high-bounce ball "Moon.".

Review the Follow the Bouncing Ball Facilitator Background Information and Explore! Health in Space Discussion Guide.

Test them to make sure! You may substitute other pairs of balls for high-bounce and jacks balls, as long as they bounce at noticeably different heights.

Follow the Bouncing Ball Children's Guide.

Explore! Health in Space Discussion Guide.Follow the Bouncing Ball Facilitator Background Information.Astronauts experienced less gravity on the Moon, so dropping a ball on the Moon would cause it to bounce much higher than on Earth.Astronauts - and kids! - need to rest, relax, and have fun.Station, presented in combination with related activitiesĭemonstration by facilitator What's the Point?

Families or other mixed-age groups, including children as young as 4 years old with assistance from an older child, teen, or adult.They simulate the experiment by dropping high- and regular-bounce balls from their shoulder height. So the SLOPE of the curve for the speed would be getting STEEPER.Space Stations - Follow the Bouncing Ball! OverviewĬhildren predict whether a ball on Earth or a ball on the Moon bounces higher when dropped (or thrown at the floor) and why. The average speed gets faster in the 2nd second than in the 1st second. If you try to get your car up to 70 miles per hour when you pull off the shoulder onto I-380 after stopping because of the deer, how far will your car go in the first second? In the second second? In the 3rd second? That is easing into the motion.

If you slam on your brakes in a car when you are going 75 miles per hour as you spot a deer running out on the road, and it takes you 50 yards to get stopped and 5 seconds to get stopped, where would your car be after the 1st second (of 5 seconds) of squeeling tires? It would NOT be 10 yards of the 50 yards, right? The first second your car might have gone 25 yards, or half the distance! That is easing out of the motion. The key question is how long does it take to achieve that total journey is halfway done? The keyframes are at 1 and 25 for the first two panels and are at 35 and 60 for the 3rd of the 3 panels (Custom Ease In/Ease Out panels). The RED square highlights the moment when the Ball has gone exactly 50% of the distance it needs to travel to get from one KEYFRAME to the next KEYFRAME.

The horizontal axis is labeled FRAMES in the Custom Ease In/Ease Out panels (windows or dialog boxes) shown above here.

Note where the SLOPE flattens out and the ball nearly stops.

Note where the SLOPE is steeper for the EASE OUT graph.

Note how the slope of the curve is almost FLAT from frame 1 to frame 5. After Frame 20 up until Frame 25 it has a steep slope.

Note where the SLOPE is steepest for the EASE IN graph.

See the NO EASING graph shown above here. The moments in time are called FRAMES in Flash. The shadows or onion skins are the same distance apart at every one of the moments in time. The slope of its line is the same everywhere, indicating a constant rate of speed. Is very slow (the ball shadows are very, very close together at the top) but then becomes faster and faster (the ball shadows are farthest apart right at the bottom, where the ball is about The ONION SKINS screen snapshot from the Flash screen snapshot shows the EASE IN as the ball drops from the top to the floor.

The red ball eases in to the motion as it falls to the floor and eases out of the motion as it bounces back up from the floor.