Why was it important to drop the ball from the same height three times?
Answer: It is important to do this to test your theory multiple times, so that you can see what effect the drop has on it when doing this multiple times. The numbers were slightly different because the recordings will not always be the same.
Why does a ball bounce higher when dropped higher?
Because the ball is softer than the floor, it does most of the denting and stores most of the energy. When you drop a ball from a greater height, it has more kinetic energy just before it hits the floor and stores more energy during the bounce—it dents farther as it comes to a stop.
Does a ball of glass bounce higher than rubber?
It’s true! When you drop a ball on a surface, it compresses and squashes slightly, before snapping back to its original shape. In addition, a solid glass ball will also bounce higher than a rubber ball, but then the trick is finding a surface hard enough to make the ball bounce, but not hard enough to break it!
What do you call the ray that bounce back from the surface?
Answer: Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. This is called specular reflection. its reflected ray.
How do you calculate ball bounce?
200 represents the initial height, and (2, 111) represents the second height after the first bounce at 111 cm. We now know that this ball has a 55.5% rebound ratio. We can fill in a table or calculate the height of the ball after each further bounce….Student Exploration.
| 1 | 200 |
|---|---|
| 11 | 0.554574411 |
| 12 | 0.307788798 |
| 13 | 0.170822783 |
Can you use paper as a reflecting surface?
Even though a plane mirror and a sheet of paper reflect light ,we can see our image in the mirror and not the paper as the mirror has a smooth,polished,reflective surface which is able to reflect the light rays according to the law of reflection . Contrastingly , a paper sheet has a rough surface which is uneven .
What is the reflection from an irregular surface called?
When a beam of parallel light rays is scattered in all directions, So, the parallel rays incident on the surface will reflect in different directions, and it is called irregular or diffuse reflection.
What is meant by specular reflection?
Specular reflection is a type of surface reflectance often described as a mirror-like reflection of light from the surface. In specular reflection, the incident light is reflected into a single outgoing direction. It is further reflected at a similar angle.
What are the 5 R’s of reflection?
The 5Rs of the reflection (Bain et al 2002) is one such framework. The five elements of this framework are Reporting, Responding, Reasoning, Relating and Reconstructing. When used effectively, reflection can facilitate significant personal and/or professional growth.
What is an example of sound reflection?
It is the sound heard when reflections occur from a firm surface, for example, a wall or cliff. Echo is the repetition of sound even after the source has stopped vibrating. This is used by bats as well as dolphins for the detection of obstacles or navigation.
How does light know which is the shortest path?
When you shine a beam of light from one material into another (like from air to water) it bends in such a way that the path it takes from one point to another requires the least possible time. Particles can’t magically know what the shortest path will be, but waves find it “accidentally” every time.
Why does a ball eventually stop bouncing?
If you drop the basketball, the force of gravity pulls it down, and as the ball falls, its potential energy is converted to kinetic energy. This is because the basketball had an inelastic collision with the ground. After a few bounces, it stops bouncing completely.
What force makes a ball bounce back up?
gravity
How many times can a ball bounce?
In an idealized situation with a fixed coefficient of restitution between 0 and 1, a ball bounces an infinite number of times in a finite amount of time and travels a finite abount of total distance, with the frequency of bounces approaching infinity as the time approaches the limit of time based on the initial …
How many times can the ball bounce in tennis?
The aims of tennis Each player has a maximum of one bounce after the ball has been hit by their opponent to return the ball over the net and within the boundaries of the court. If they fail to do this, then the opponent wins the point.
Can you hit a tennis serve before it bounces?
The server may serve underhand, but he or she may not bounce the ball before hitting it. The server may not serve before the receiver is ready. The receiver must let the serve bounce before touching it. On any other shot in the game, however, if the ball touches the net and lands in, it remains in play.
Can a ball bounce twice in tennis?
When rallying, in order to get a “point,” the ball can either bounce at least twice in the court, once in the court and once anywhere else (including stationary objects not on the court), or the hitter can may hit the ball directly out or into the net and lose the point.
What happens if a ball falls out of your pocket in tennis?
If a ball falls from the pocket of a player or falls from the hand of the player during a point, that player cannot call the let since he/she created the hindrance. It is up to the opponent to call the hindrance and play a let. This call must be made immediately and not after the point has been played out.
Why do tennis players put a ball in their pocket?
The balls in their pocket is for serving the ball. If the first serve is fault, then instead of asking the ball boys for the ball it is easier to reach their pockets for the next serve.
What is it called when you hit a tennis ball after it bounces once?
Groundstroke – a forehand or backhand shot made after the tennis ball bounces once on the court.
What is the hardest shot in tennis?
Backhand Smash
What is the fastest shot in tennis?
However, John Isner holds the ATP’s official record for the fastest serve at 253 km/h (157.2 mph). Ivo Karlović with a 232 km/h (144.2 mph) second serve in the quarterfinals of the 2007 Legg Mason Tennis Classic in Washington, holds the record for the fastest second serve ever recorded.
Which tennis grip has the most power?
Typically a more western grip will result in more topspin while an eastern grip will have more power and be a little flatter ball. I do not recommend a continental grip or a full western for recreational tennis players.
Is the one handed backhand dead?
The one-handed backhand isn’t simply a stroke. After the serve-and-volley game died in the early 2000s (with all that power and spin, it was too dangerous to come to the net), the one-hander has become the last redoubt of artistry in tennis, a final vestige of the sport as it was traditionally played.
Why is backhand so hard?
Due to the fact that the player’s dominant hand “pulls” into the shot, the backhand generally lacks the power and consistency of the forehand, and is usually considered more difficult to master. However, the two-handed backhand provides more stability and power for the shot, and is increasingly used in the modern game.
Why is backhand weak?
The #1 reason for missing with your backhand is because you ask too much from it, and don’t want to accept that it’s really a weaker shot. You may be afraid that if you start playing more conservatively, your opponent will realize that your backhand is weaker and your secret will be revealed.
What is the fastest backhand in tennis?
Average Backhand Speed (MPH) Dominic Thiem led the current Top 10 with average backhand speed at 67.4 mph, followed by Djokovic (67.3 mph) and Alexander Zverev (67.0 mph). Federer was around the middle of the ATP pack, averaging 66.1 mph. The average backhand speed for the 94 players in the data set was 66.0 mph.
Who is the fattest tennis player?
Ivo Karlović
| Born | 28 February 1979 Zagreb, SR Croatia, SFR Yugoslavia |
| Height | 2.11 m (6 ft 11 in) |
| Turned pro | 2000 |
| Plays | Right-handed (one-handed backhand) |
| Singles | |
|---|---|
Why do tennis players apologize for hitting the net?
Tennis players apologizes on net balls to show respect for the opponent that didn’t get a fair chance to return the shot. You apologize by raising your hand or racquet and acknowledge a stroke of luck. Tennis have a tradition of great sportsmanship and acknowledging that you were lucky is a part of it.
Who is the heaviest female tennis player?
Tallest female tennis players of all time
- = #4 Maria Sharapova (1.88 m / 6 ft 2 in)
- = #4 Helena Sukova (1.88 m / 6 ft 2 in)
- = #4 Erin Routliffe (1.88 m / 6 ft 2 in)
- = #3 Lindsay Davenport (1.89 m / 6 ft 2 1⁄2 in)
- = #3 Naomi Broady (1.89 m / 6 ft 2 1⁄2 in)
- #2 Akgul Amanmuradova (1.9 m / 6 ft 3 in)
- #1 Eva Hrdinova (1.91 m / 6 ft 3 in)