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Knihovna

Momentum and Hooke's law

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Poslední aktualizace 4 months ago
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Otázka 9
9.

Which best describes average speed?

Otázka 10
10.

Look at the distance-time graph above. What is the total distance traveled?

Otázka 11
11.

Refer to the graph above again. Over what period of time does the motion occur?

Otázka 12
12.

Look at the graph above. Given that speed = distance / time, calculate the speed of the object. Show your work in the space below.

Otázka 13
13.

A kayaker paddles along a river for four hours. In that time, she manages to move a total of 20 miles. What is the average speed of the kayak for this trip?

Otázka 14
14.

What is acceleration? Type a definition for this term in your own words.

Otázka 15
15.

What is the formula for acceleration? Make sure your answer includes a key explaining what a, vf, vi, and t stand for.

Otázka 16
16.

A ball begins rolling down a hill. After 5 seconds, its velocity is 10 meters per second. What is the acceleration of the ball? See page 346 in your book for help!

Otázka 17
17.

A vehicle brakes from 30mph to 5 mph over a period of 10 seconds. What is the vehicles acceleration?

Otázka 18
18.

Over which time period does positive acceleration occur?

Otázka 19
19.

Over which time period does negative acceleration occur?

Otázka 20
20.

What is the formula for momentum? Be sure to include a key showing what p, m, and v stand for.

Otázka 21
21.

Which has the most momentum?

Otázka 22
22.

Which has the most momentum?

Otázka 23
23.

What is momentum?

Otázka 24
24.

What is the unit for momentum?

Otázka 25
25.

Write the formula for calculating momentum.

Otázka 26
26.

What is the momentum of an adult female fly with a mass of 0.12 kg traveling at a velocity of 1.5 m/s? Don't forget your units - kg m/s.

Otázka 27
27.

Convert 30 km/h to m/s. (Round to 2 decimal places)

Otázka 28
28.

What is the momentum of an adult female that is 75 kg riding a 5 kg bicycle travelling at a velocity of 30 km/h. (Round to 1 decimal)

Otázka 29
29.

What is the momentum of a compact car that is 750 kg and is travelling 30 m/s?

Otázka 30
30.

What is the momentum of a transport truck that is 2500 kg and is travelling at 15 m/s (50 km/h)?

Otázka 31
31.

What is the momentum of a transport truck that is 3000 kg and travelling at 110 km/h? (Round to the nearest whole number.)

Otázka 32
32.

Give an example of an object with very low momentum.

Otázka 33
33.

Give an example of an object with high momentum.

Otázka 34
34.

When might it be harder to stop a vehicle moving at 30 km/h than one moving at 60 km/h?

Otázka 35
35.

The best way to counteract momentum is by _____________________.

Otázka 36
36.

If the velocity of an object is doubled, what happens to the momentum?

Otázka 37
37.

If the mass of an object is doubled, what happens to the momentum?

Otázka 38
38.

As the mass increases, the amount the spring stretches…

Otázka 39
39.

When we stretch a spring, the force acting through it is…

Otázka 40
40.

The amount the spring stretches is _________ to the mass attached.

Otázka 41
41.

Define Hooke’s law

Otázka 1
1.

Granny's momentum

Otázka 2
2.

Ambrose's Momentum

Otázka 3
3.

Total momentum is

Otázka 4
4.

a.

Otázka 5
5.

b.

Otázka 6
6.

c.

Otázka 7
7.

d.

Otázka 8
8.

e.