WorksheetsAS chapter 1-2
Total questions: 23
Worksheet time: 20mins
A object is released from rest and falls freely（下落） for 10m high until reaching the ground. What is time for this process?
2
1.4
2.4
1
A object is released from rest and falls freely （下落） for 4.00 𝑠 until reaching
ground. Select all correct answers.
末速度vf =0
初速度v0 =0
t=4s
a is relate to g
a is negative
A object is released from rest and falls freely for 4.00 𝑠 until reaching the
ground. What is the highest distance? （所有填空题均不要填写单位）
(a)
I ran west（西） for 30 metres, then east（东） for 40 metres. What is my displacement?
(a)
I ran a circle （跑了一整圈）and go back to initial point. What is my displacement?
(a)
The translation of '位移' into English is
distance
speed
acceleration
displacement
Which of the following properties does a scalar（标量） have?
only magnitude
only direction
both magnitude and direction
I dont know
Which one of the following choices is a vector quantity（向量）?
average speed
time
mass
acceleration
A ball is thrown upward（上抛） for 10s until reaching the highest point. Select all correct answers.
t=10s
v0=0
vf=0
a=10m/s
最高高度可以通过题目给出的条件算出来
A ball is thrown upward （上抛） for 10s until reaching the highest point. What is the initial velocity for ball?
100m/s
10m/s
0m/s
-100m/s
A ball is thrown upward for 10s. What is the average velocity? (前一题中初速度答案为100m/s)
(a)
A ball is thrown upward for 10s. What is the highest distance (m)? (前一题中初速度答案为100m/s)
(a)
A ball is thrown for an angle(not vertical upward) until reach the highest point. Assume Vy（竖直方向初速度）=100m/s, Vx（水平方向初速度）=50m/s. What is the time for total process?
100s
10s
1s
5s
A ball is thrown for an angle(not vertical upward). What is the horzontal distance? (t=10s上一问)
(a)
A ball is thrown for an angle(not vertical upward). What is the angle θ?
30.0
60.0
26.6
42.8
A ball is thrown for an angle(not vertical upward).Assume △y（竖直方向最大距离）=100m,△X=50m.What is the angle θ?
34.6
26.6
15.8
根据现有条件，无法得到答案
A ball is thrown for an angle(not vertical upward).△y(竖直方向最大距离)=100m,△X=50m.What is the horizontal average velocity（水平方向的平均速度）?
(a)
A ball is release for an angle(not vertical upward).△y(竖直方向最大距离)=500m,vx =10m/s. What is the total time for this process?
(a)
A ball is release for an angle(not vertical upward).△y(竖直方向最大距离)=500m,vx =10m/s.What is the horizontal distance?
(a)
Select all physical quantities （物理量）
velocity
metre
current
ohm
force
Select all SI base unit （国际基本单位）
m/s
s
kg
J
Pa
Assume 1kwh（千瓦时）= 3600000 J, so 1Gwh=3.6×10x J, What is x?
(a)
What is the 'density'（密度） expressed in SI base units?
kg×m2
kg×m
kg×m3
kg/m3
kg/m2
