Leap Review

When a rider steps onto the skateboard, the force between the skateboard and the track ____ .

• increases

• decreases

• stays the same

Tags

NGSS.MS-PS2-2

If the magnets are removed from the skateboard, the height of the skateboard should ____.

• increases

• decreases

• stays the same

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which property of the objects in the model has a larger effect on the motion of moon 1?

• the orbital paths of planet 1 and planet 3

• the rotational speed of moon 2

• the force of gravity from planet 2

• the force of gravity from planet 3

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which claim about the mass of the different objects is best supported by the data in the table?

• Object 1 has the greatest mass because it is closest to the sun

• Object 2 has the greatest mass because its orbital period and distance from the sun are most similar

• Object 3 has the greatest mass because it has the largest surface gravity

• Object 5 has the greatest mass because it has the longest orbital period

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

During a collision between a smaller space debris piece and the spacecraft wall, the force of the space debris piece _____ the force of the spacecraft wall.

• less than

• greater than

• equal to

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

The force of the spacecraft wall is directed ____.

• up

• down

• toward the piece

• away from the piece

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Engineers can further reduce the force of incoming space debris on the spacecraft by slightly ___ the thickness of the aluminum layer.

• increasing

• decreasing

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

• Dot 1

• Dot 2

• Dot 3

• Dot 4

Tags

NGSS.MS-PS4-1

Scientist will study how Earth's magnetic field changes as distance from Earth changes. Satellites will be placed at different distances from Earth and will be used to measure the strength of Earth's magnetic field. What is the Independent Variable?

• magnetic field strength

• distance from Earth

• size of satellite

• mass of satellite

• gravitational force of Earth

What distinguishes a plant cell from an animal cell? (How do you tell them apart) Hint: There's 3 ways (Check all 3)

• Central Vacuole

• Mitochondria

• Cell Wall

• Ribosomes

• Chloroplasts

Tags

NGSS.MS-LS1-2