اختبار إلكتروني: Momentum & Impulse Worksheet

A

-2.5

B

-10

C

-18

D

-45

A

0.1 kg-m/s

B

1 kg-m/s

C

10 kg-m/s

D

100 kg-m/s

A

increase impact force

B

increase force

C

increase collision time

D

increase change in momentum

A

the Impulse on the car hitting the wall is greater

B

the change in momentum of the car hitting the wall is greater

C

the force on the car hitting the hay stack is greater

D

the collision time of the car hitting the hay stack is greater

A

6030 kg

B

0.0134 kg

C

74.4 kg

D

80 kg

A

N/s

B

N.s

C

N

D

m/s

A

Cart B

B

Cart A

C

they are the same

A

1 N.s

B

6 N.s

C

66 N.s

D

None of these

A

decrease time of impact.

B

increase force of impact.

C

increase the time of impact.

D

decrease the impulse during impact.

A

external force

B

internal force

C

time interval

D

displacement

A

the impulse on an object is equal to the change in momentum it causes

B

the force on a moving object is equal to the magnitude of the impulse.

C

the impulse on an object is greater than the change in momentum it causes

D

the impulse on an object is less than the change in momentum it causes

A

6.3 m/s

B

3.2 m/s

C

1.2 m/s

D

4.33 m/s

A

2400 kg.m/s

B

1.5 kg.m/s

C

0.67 kg.m/s

D

1500 kg.m/s

A

\( 9.75 \times 10^{2} \text{ N} \)

B

\( 1.46 \times 10^{4} \text{ N} \)

C

\( 9.75 \times 10^{3} \text{ N} \)

D

975 kg·m/s

A

3

B

4.5

C

6

D

9

A

6

B

8

C

10

D

12

A

2

B

4

C

6

D

8

A

yes

B

no

A

1 kg

B

2 kg

C

1.5 kg

D

2.5 kg

A

25 m/s

B

375 m/s

C

25 kg m/s

D

375 kg m/s