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ǰλãҳ > 2018年中考物理试题分项版解析汇编(?2?专题05运动和力(含解? - 百度文库

2018年中考物理试题分项版解析汇编(?2?专题05运动和力(含解? - 百度文库

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ר05 ˶

һѡ

1еಿλиܸ˵Ĺܡͼסʱֱ۵ʾͼ5kg屣ƽʱŶͷʩĴСһ

A. 5kg B. 49N C. С49N D. 49N Դɽʡij2018п 𰸡B

AĵλNĵλkgĿĴСkgλABCDͼ֪ΪGmg5kg9.8N/kg49NŶͷΪֵѹΪ֧⣬ͼʾ

ԶСۣݸܸƽF1L1F2L2ΪL1L2F1F2Ŷͷܵһ49NBȷCD󡣹ѡB

㾦ȷܸ˵֧㡢ӦĶۺۣݸܸ˵ƽF1L1F2L2۵ĸз 2˵ȷǣ A. ð뵼Ƴɵ B. ôԲƳɵ

C. ϵıþԵƳɵ

D. ƤƯָӡ˵Ƥе Դɽʡij2018п 𰸡A

1

Aӻɵ·ʹõĶð뵼ƳɵģAȷBùйģڹüͷĹȡϢûõԲϣBCִϵıõƳɵģCDƤ෢αָܻԭ״ǵα䣬D󡣹ѡA

㾦1ǰ뵼Ƴɵģ2ԲӦù㷺磺Ŵſ̡ߴŰ¼Ĵͷȣ3ݵԵIJͬϿɷΪ壬뵼壬Ե࣬׵е壬׵оԵ壬ܽڵԵ֮Ľа뵼壻4巢α󣬲ָܻԭ״ʽԡ

3ͼΪʵ˶켣ʵ뿪ֺڿзйߵܵ

A. ֻ B. Ϳ

C. ֵ D. ֵ Դ㽭ʡ2018п 𰸡B

㾦ڵΧһ嶼ҪܵãڷйУܹȷһҪܵáǷֵܵҪֵλùϵΪ뿪ڡʵڿзУܵá

4ͼʾб»ȷǣ

A.

B.

2

C.

D.

Դ㶫ʡ2018п 𰸡D

㾦⿼ʾͼĻȷǽĿĹؼ 5㲻ǣ A. һѧԼ500N B. ˲ٶԼ10m/s C. Լ37 D. ƽܶԼ1g/cm

Դ㶫ʡ2018п 𰸡B

ͬĹ㣬еҪƾ飬еҪ򵥵ļ㣬еҪеλĻ㣬жʵʵһ

Aѧ50kgңܵԼΪʡ

Bеٶ

ҡѡʵʣ

ѡʵ

3

C£˵37ң仯ȺСCʵʣ Dѧ50kgңԼΪ0.05m

3

3

ѡʵʡ

ѡB

㾦峤ȡȽй⣬dzһҪƽʱѧ֪ʶߵ磺˸ߡҸߡٶȡ¥ݽαͿڿȵȣ۲˼Ҫʱȷжϡ

6ͼеϢǣ

A.

B. ʿˮ

C. 崦ھֹ״̬

D. ¶ȣ52.3棩ʹˮ¶ȼ

Դ㶫ʡ2018п 𰸡D

Ҫͼеĺꡢٸͼ״ӳɣѡĺ壬ɽ⡣

Aȣͼ״Ⱥͼ񣬹Aȷ Bͼ񣬵Ϊ10ʱΪ10ף

ʿˮ

4

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ר05 ˶ һѡ 1еಿλиܸ˵Ĺܡͼסʱֱ۵ʾͼ5kg屣ƽʱŶͷʩĴСһ A. 5kg B. 49N C. С49N D. 49N Դɽʡij2018п 𰸡B AĵλNĵλkgĿĴСkgλABCDͼ֪ΪGmg5kg9.8N/kg49NŶͷΪֵѹΪ֧⣬ͼʾ ԶСۣݸܸƽF1L1F2L2ΪL1L2F1F2Ŷͷܵһ49NB

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