星期一下午physics-sl paper 1 tz1物理学.pdfVIP

©InternationalBaccalaureateOrganization2010

–2–M10/4/PHYSI/SPM/ENG/TZ1/XX+

1. Thebestestimateforthetimeittakeslighttocrossthenucleusofthehydrogenatomis

−23

A. 10s.

−20

B. 10s.

−15

C. 10s.

−7

D. 10s.

2. Thelengthofeachsideofasugarcubeismeasuredas10mmwithanuncertaintyof±2mm.

Whichofthefollowingistheabsoluteuncertaintyinthevolumeofthesugarcube?

A. ±6mm3

B. ±8mm3

C. ±400mm3

D. ±600mm3

3.Thetimetakenforastonedroppedfromresttofallverticallythrough16mis2.0s. Basedonthese

measurements,whatisthebestestimatefortheaccelerationoffreefall?

A. 4.0ms−2

B. 8.0ms−2

C. 9.8ms−2

D. 10ms−2

4. Awoodenblockisslidingdownaninclinedplaneatconstantspeed. Themagnitudeofthefrictional

forcweentheblockandtheplaneisequalto

A. zero.

B. themagnitudeoftheweightoftheblock.

C. themagnitudeofthecomponentofweightoftheblockparalleltotheplane.

D. themagnitudeofthecomponentof thenormalreactionparalleltotheplane.

2210-6510

–3–

5. WhichofthefollowingisacorrectstatementofNewton’ssecondlawofmotion?

A. Aforceactingonabodyisproportionaltothemassofthebody.

B. Therateofchangeofmomentumofabodyisequaltothenetexternalforceactingon

thebody.

C. Themomentumofabodyisproportionaltothenetexternalforceactingonthebody.

D. Aforceactingonabodyisproportionaltotheaccelerationofthebody.

6.Aball