㶫ʡа꼶ѧпԾ
:________ ༶:________ ɼ:________
һ ѡ (16⣻32)
1. 2֣ (2017ģ) ʵ˴ѹǿֵĿѧǣ A . B . C . ˹ D . ٤
2. 2֣ ͼʾͼõɲľ飬ʹˮƽľٻͼͬһľõ·ʱ仯ͼ˵ȷǣ
A . ľڶܵϴ B . һľĶܴ
C . ľܵĦ D . һľĹʴ
3. 2֣ (2019¡¿) ͼ,F=6NˮƽAʱ,Bֹ,ɲƵʾΪ 4N.BAĦСǣ
A . 6N ˮƽ B . 4N ˮƽ C . 6N ˮƽ D . 4N ˮƽ
4. 2֣ (2020üɽ) Сڸٹ·ϳͳʱȤЩĽͣ˵ǣ
A . ˳ʱҪϵðȫΪ˷ֹԴΣ B . ȫñƽΪԼСѹ C . СľܣԴͳΪ
1 ҳ 23 ҳ
D . ͳߵϿлƣۣĦֹ·
5. 2֣ ע۲гйгĦСĦ˵ĸǴģ
A . ̥ϿƽĻƣΪĦ B . ɲʱբΪĦ C . ϼΪ˼СĦ D . װйУΪĦ
6. 2֣ ijͬѧһԼΪ200gٶȴӽѧ¥һ¥¥¥жⱾĹӽڣ
A . 0.04W B . 0.4W C . 4W D . 40W
7. 2֣ (2018ϡɽ) ȫͬļסװ벻ͬҺˮƽ룬֧ͬܶȼƷֱУͼʾײܵҺѹǿֱpסp ѹǿֱpס䡢pҡ䣬ȷǣ
A . p
pңpס> pҡ D . p
8. 2֣ ľСϣСһͬٶֱ˶ǿзȷǣ
A . С˶ٶĹԺͶҲ֮ B . СܵͻȻֹͣ˶ʱôľ齫㵹 C . Сľ֧ľһƽ D . ľСѹСľ֧һƽ
2 ҳ 23 ҳ
9. 2֣ ͼʾ˵ȷǣ
A . 40cm3 B . Ϊ75.2g C . ܶ7.7g/cm3 D . ܶ7.7kg/m3
10. 2֣ (2018¡) йڹԵ˵Уȷǣ A . ʱٶ B . ɲʱٶȼСԼС C . Աӵ̫գԲ D . ֻоֹ˶й
11. 2֣ (2019¡˳) ͼʾĻAFʹAֱh˹ƶľΪsAΪGΪG1 ΪG2 غͻᴦĦжȷǣ
A . µF=2(G+G2) B . AùΪW=Gh C . FܹΪW=(G+G1+G2)s
D . Сֵߴ˻ĻеЧ
12. 2֣ 094͡DZͧҹƵһDZͧϸδ¶ˮĹУܵˮģ
3 ҳ 23 ҳ