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Laabri

HOMEWORK Due Feb 7

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Last updated about 6 hours ago
20 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

How many stars are in a galaxy?

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Which best defines an orbit?

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

What does a lightyear measure

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

State the name of the imaginary line that the earth spins around.

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Starter with the New Moon, put the phases of the moon in order

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

What are the units of mass?

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

What is the weight of a 5 kg object on Earth (g = 9.81 m/s²)?

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Find the weight of a 2 kg object on Mars (g = 3.72 m/s²).

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

What happens to the chemical energy store within a fuel as it is used?

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

A new match has 800J in its chemical energy store. It is lit and allowed to burn.

How much energy has been transferred from the match when one quarter of it has been burned?

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

The battery in a torch has 20J of chemical energy store when it is full. 5J is transferred from the battery. How much is left?

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

What energy store is involved when an object heats up or cools down?

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Which thermal energy store has changed the most in the following?

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Which thermal energy store has changed the most in the following?

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

Heater A transfers 500 J in 1 s. Heater B transfers 300 J in 1 s. Explain which is more powerful.

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

What unit do we measure power in?

Asemmisa {{asɛmmisaAhyɛnsode}}
17.

What happens to the energy transferred if we increases the time a device is switched on for?

Ɛhia
1
Asemmisa {{asɛmmisaAhyɛnsode}}
18.

What is this piece of apparatus?

Ɛhia
1
Asemmisa {{asɛmmisaAhyɛnsode}}
19.

Name this piece of apparatus

Ɛhia
1
Asemmisa {{asɛmmisaAhyɛnsode}}
20.

What is this piece of apparatus?