自由落体加速度是多少?

初中物理自由落体

Quiz
•
Physics
•
8th Grade
•
Hard

相杰 朱
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.5米/秒²
9.8米/秒²
8.9米/秒²
10.2米/秒²
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
自由落体速度与时间的关系是什么?
速度与时间无关
速度与时间成正比
速度与时间成反比
速度与时间成二次比
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一个物体自由落体2秒后的速度是多少?
19.6 m/s
25.6 m/s
15.2 m/s
9.8 m/s
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
自由落体时间与高度的关系是怎样的?
t = h^2/g
t = h/g
t = 2h/g
t = √(2h/g)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一个物体自由落体3秒后的高度是多少?
32.8米
44.1米
50.5米
39.2米
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
自由落体运动规律中的三个基本公式是什么?
s = v0t + (1/2)gt^2, v = v0 + gt, a = 0
s = v0t + (1/2)gt^2, v = v0 + gt, a = 9.8
s = v0t + (1/2)gt^2, v = v0 + gt, a = g
s = v0t + (1/2)gt^2, v = v0 + gt, a = 10
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
自由落体实验中如何测量加速度?
通过测量物体的速度和质量来计算加速度。
通过测量物体下落的时间和下落的距离来计算加速度。
通过测量物体的质量和体积来计算加速度。
通过测量物体上升的时间和上升的距离来计算加速度。
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