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# 4th CCMS Science SPEED AND ENERGY

## 13 questions

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• 1. Multiple Choice
3 minutes
1 pt

A student kicks a soccer ball into a goal. The speed of the ball is reduced when it hits the net. WHAT CONCLUSION CAN BE DRAWN ABOUT THE KINETIC ENERGY OF THE BALL UPON HITTING THE NET?

The ball's kinetic energy decreases because its speed increases.

The ball's kinetic energy increases because its speed increases.

The ball's kinetic energy increases because its speed decreases.

The ball's kinetic energy decreases because its energy decreases.

• 2. Multiple Choice
3 minutes
1 pt

The image shows a disc used in disc golf. A disc golfer throws the disc two separate times while playing a round of disc golf.

The disc golfer observes that when thrown at the same angle, the disc drops to the ground more quickly on the SECOND throw. Based on the disc golfer's obseration, which statement is true about the disc on the SECOND THROW?

The disc has more kinetic energy after it lands.

The disc has more kinetic energy when released (or thrown).

The disc has less kinetic energy after it lands.

The disc has less kinetic energy when released (or thrown).

• 3. Multiple Choice
3 minutes
1 pt

Two cars travel on the same highway as in the picture.

Car P travels at a speed of 65 mph, and car Q travels at a speed of 60 MPH. WHAT CONCLUSION CAN BE DRAWN ABOUT THE KINETIC ENERGY OF THE 2 CARS?

Car Q (60 mph) has LESS energy than Car P (65 mph) because Car Q is moving at a faster speed.

Car P (65 mph) has MORE kinetic energy than Car Q (60 mph) because Car P is mpoving at a faster speed.

Car Q (60 mph) has MORE kinetic energy than Car P (65 mph) because Car Q is moving at a slower speed.

Cars P and Q have the SAME kinetic energy because they are moving at the SAME speed.