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Q 1/8
Score 0
(8.6B) A meteor moving 468 km per minute traveling in a south-to-north direction passed near Earth in 2013. Because the meteor was only 45 m wide and wasss 27,700 km above Earth’s surface,it was not visible without the aid of a telescope. Which statement describes the meteor’s motion?
60
Its acceleration was 468 km/s2.
Its acceleration was 7.8 km/s2.
Its speed was 468 km/s northward.
Its velocity was 7.8 km/s northward.
Q 2/8
Score 0
(8.6B, 8.4A) A student graphed the position of a cart during a 7-second time interval. Which statement best describes the cart?
60
The cart accelerated at a constant rate of approximately 0.8 m/s2.
The cart was stationary with a velocity of 0 m/s for the entire 7 seconds.
The cart moved at a constant velocity of 0.5 m/s for the entire 7 seconds.
The cart was stationary except for a short burst of acceleration of 0.5 m/s2.
8 questions
Q.
(8.6B) A meteor moving 468 km per minute traveling in a south-to-north direction passed near Earth in 2013. Because the meteor was only 45 m wide and wasss 27,700 km above Earth’s surface,it was not visible without the aid of a telescope. Which statement describes the meteor’s motion?
1
60 sec
Q.
(8.6B, 8.4A) A student graphed the position of a cart during a 7-second time interval. Which statement best describes the cart?
2
60 sec
Q.
(8.6B) Which of the following best describes the velocity of an object?
3
60 sec
Q.
(8.6B, 8.3A) The three vehicles shown below are all traveling at a speed of 15 m/s, but only the pickup truck has a changing velocity.
The pickup truck has a changing velocity because the pickup truck-
4
60 sec
Q.
(8.6B) What is the difference between the velocity and the speed of an object?
5
60 sec
Q.
(6.8D, 8.2E) A golfer collected data on the distance a golf cart traveled in a straight line and plotted it on a graph. Which of these does NOT described the cart’s motion on this graph?
6
60 sec
Q.
(6.8D, 8.2E) A hobbyist collected data about the motion of a toy train on a straight track and then recorded the data in the graph below. Which of these accurately describes the motion of the toy train?
7
60 sec
Q.
(6.8D, 8.2D) Students slid a small wood block along a flat tabletop for a distance of 1.6 m. The data shows the motion of the block of wood. Which graph displays the motion of the wood block?
