Strand 1 Quiz

What season is the Northern Hemisphere in when it is exposed to the Sun?

• Winter

• Spring

• Summer

• Autumn

Answer explanation

The Northern Hemisphere is in summer when it is exposed to the Sun.

Tags

NGSS.MS-ESS1-1

Earth's orbit is generated by what two forces?

• magnetism and friction

• centrifugal force and centripetal force

• heat and pressure

• gravity and inertia

Answer explanation

Earth's orbit is generated by the forces of gravity and inertia. These forces keep the Earth moving in a curved path around the Sun.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

What force cause a bulge at the Earth's equator?

• Centrifugal force

• Frictional force

• Magnetic force

• Gravitational force

Answer explanation

The bulge at the Earth's equator is caused by the centrifugal force, which pushes outward due to the rotation of the Earth.

Match the layers of the Sun to their correct names.

a

b

c

d

e

f

photosphere

radiative zone

convection zone

core

Chromosphere

corona

What causes the Earth's rotation?

• Gravitational force

• Centrifugal force

• Magnetic force

• Inertia

Answer explanation

The Earth's rotation is caused by inertia, which is the tendency of an object to continue moving in a straight line unless acted upon by an external force. In this case, the external force is the gravitational pull of the Sun and other celestial bodies.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What season is the Southern Hemisphere in when it is exposed to the Sun?

• Winter

• Spring

• Summer

• Autumn

Answer explanation

The Southern Hemisphere is in summer when it is exposed to the Sun. This is because the tilt of the Earth's axis causes the Southern Hemisphere to be closer to the Sun during its summer season.

Tags

NGSS.MS-ESS1-1

What two forces are responsible for the Moon's orbit around the Earth?

• magnetism and friction

• centrifugal force and centripetal force

• heat and pressure

• gravity and inertia

Answer explanation

The Moon's orbit around the Earth is primarily due to the forces of gravity and inertia.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2