HOMEWORK P1 Space and mix - J Bryant | Bibliotek

1

What do moons go around?

A planet

A star

Another moon

1

State how many planets there are in the solar systems

2

What is a nebulae?

Birthplace of stars

A type of star

A black hole

A cloud of gas and dust

2

Which best defines an orbit?

The path a planet takes around the sun

Circular movement

Standing still in space

Spiraling into darkness

1

What unit is used to measure the distance between stars?

Kilometer

Meter

Light year

Centimeter

1

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

Kinetic energy store

Chemical energy store

Thermal energy store

1

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

5 kg of concrete cooled by 5°C

5 kg of concrete cooled by 10°C?

1

When is the kinetic energy store of an object zero?

When it isn't moving

When it's going faster

When it's slowing down

1

Kettle A transfers 16 J in 2 s. Kettle B transfers 18 kJ in 2 s. Explain which is more powerful.

A

B

Nødvendig

1

In humans, what is the male gamete?

Nødvendig

1

In humans, what is the female gamete?

Nødvendig

1

Where are sperm made?

Nødvendig

1

Where are ova made?

1

What is the common name for menstruation?

1

How long is the average pregnancy in weeks?

40 days

35 weeks

40 weeks

1

How long is the average menstrual cycle

30 days

28 days

A month

40 weeks

1

What happens around day 14 of the menstrual cycle?

The menstrual cycle starts

Ovulation

the lining sheds

Nødvendig

5

Female humans release an ovum once every If fertilised, the embryo will develop into a . It takes months before the uterus muscles and the baby is born. After the baby is born, the cord connecting to the mother is cut.