TRANSPORT Movement And Energy Flashcards Preview

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Flashcards in TRANSPORT Movement And Energy Deck (14):
0

What happens to energy during an objects movement?

It changes from one form to another.

1

How happens to the total amount of energy?

It remains unchanged

2

What is the principle of the conservation of energy?

Energy cannot be made or destroyed.

3

Give examples of energy transformations in a car journey? (Acceleration, braking and uphill)

Acceleration; chemical to kinetic
Braking; kinetic to heat
Uphill; chemical to energy

4

What is work done?

A measure of the energy transformed during an energy transformation.

5

What is work done measures in?

Joules

6

What is power?

The rate at which energy is transformed

7

What is power measured in?

Watts

8

What is the change in gravitational potential energy?

The work done against gravity

9

What is gravitational potential energy measured in?

Joules

10

What is kinetic energy?

The energy an object has due to motion

11

What does kinetic energy depend on?

Mass and speed. Increasing either increases kinetic energy.

12

How could you tell an appliance was more powerful?

Used up energy at a faster rate.

13

Thinking distance=

Speed x reaction time