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Q 1/11
Score 0
(8.6A) The two sleds shown below are about to collide. If they stick together in the collision, what will happen after the collision? (In this collision, there is no friction between the sleds and the snow.)
60
The two sleds will be motionless in the middle.
The two sleds will move to the left.
There is not enough information to know which sled will be pushed backward
The two sleds will move to the right.
Q 2/11
Score 0
(8.6C) When a roller coaster races around a curved track like this one, the riders feel as though they are being pushed toward the outside of the curve. What causes this feeling?
60
the constant velocity of the car
none of the above
the inertia of the riders
the steepness of the track
11 questions
Q.
(8.6A) The two sleds shown below are about to collide. If they stick together in the collision, what will happen after the collision? (In this collision, there is no friction between the sleds and the snow.)
1
60 sec
Q.
(8.6C) When a roller coaster races around a curved track like this one, the riders feel as though they are being pushed toward the outside of the curve. What causes this feeling?
2
60 sec
Q.
(8.6C) What force would be required to accelerate a 40 kg dog by 4 m/sec/sec?
3
60 sec
Q.
(8.6A) If the rope moves in the direction of Team A, which choice could show the amount of force the two teams used?
4
60 sec
Q.
(8.6A) A force of 7 N pushes a ball to the right, and a force of 11 N pushes the ball to the left. How will the forces affect the ball’s motion?
5
60 sec
Q.
(8.6C) Four students push carts filled with sporting equipment across the gym. Each student pushes with the same amount of force. Which cart has the greatest change in speed?
6
60 sec
Q.
(8.6C) When an object is at rest, what is its speed?
7
60 sec
Q.
(8.6B) Which term best describes the velocity of the car?
8
60 sec
Q.
(8.6C) A skater slowing as she slides across the ice is an example of _____.
9
60 sec
Q.
(8.6AC) Which of the following is an example of an unbalanced force?
10
60 sec
Q.
(8.6C) On Planet Zorg, a 30-kg barbell can be lifted by only exerting a force of 180 N. What is the acceleration of gravity on Planet Zorg?
