Science Review 3 (23-24)

In the 16th century, Nicolaus Copernicus proposed a model of the solar system that is still used today. In this model, what object do the planets orbit?

• The Earth

• The Sun

• The Moon

• The Milky Way

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

An object is sent to the Moon from Earth in a spacecraft. Which observation correctly describes what happens to the mass and weight of the object on the surface of the Moon?

• Both the mass and weight of the object decrease.

• Both the mass and weight of the object stay the same.

• The mass of the object decreases, and the weight of the object increases.

• The weight of the object decreases, and the mass of the object stays the same.

Tags

NGSS.MS-PS2-4

Which describes the energy of a toy car as it rolls down a ramp?

• The kinetic energy and the potential energy both increases.

• The kinetic energy and the potential energy both decrease.

• The kinetic energy increases and the potential energy decreases.

• The kinetic energy decreases and the potential energy increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is a reason why a moving wagon on a sidewalk will slow down?

• THe friction between the wagon and the sidewalk.

• The pull of gravity on the wagon.

• Unbalanced forces

• Balanced forces

Tags

NGSS.MS-PS2-2

A bar magnet is divided into two pieces. Which of the following statements is true about the force between the broken pieces if they face each other with a small separation?

• There is an electric repulsive force between the broken pieces.

• There is an electric attractive force between the broken pieces.

• There is a magnetic attractive force between the broken pieces.

• There is a magnetic repulsive force between the broken pieces.

Earth continuously rotates on its axis while also moving in an orbit. About how much time does it take for Earth to make one complete rotation on its axis?

• 24 hours

• 30 days

• 60 minutes

• 365 days

Which type of force requires contact between two objects for one to push or pull the other?

• frictional force slowing down a rolling soccer ball

• the magnetic force pulling paper clips to a powerful electromagnet

• the magnetic force pushing two magnets apart

• the force of gravity acting on raindrops that fall to Earth

Jerry threw a ball into the air. It followed a curved path and soon fell to the ground because.....

• air friction stopped the ball.

• gravity changed the ball's direction.

• the ball was not thrown hard enough.

• the ball was not thrown straight up.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-5

The tendency of stationary object to resist being put into motion is known as.....

• acceleration

• inertia

• weight

• velocity

A hockey player swings her hockey stick and strikes a puck. According to Newton's third law of motion, which of the following is a reaction to the stick pushing on the puck?

• the puck pushing on the stick

• the stick pushing on the player

• the player pushing on the stick

• the puck pushing on the player

Tags

NGSS.MS-PS2-1