Force and Motion

Front

Which is a force that keeps the planets in orbit around the Sun?

inertia

,

gravity

,

magnetism

,

solar energy

Back

gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

A force causes an object to be in motion. Which will most likely happen to the motion of the object if a weaker force begins acting on the object in the opposite direction?

Back

The speed of the object will decrease

Tags

NGSS.MS-PS2-2

Front

A car is traveling 50 miles per hour from Boston to Hartford, 100 miles away, leaving at 5 a.m. What time should it arrive without stops?

Back

7:00 a.m.

Front

When is friction needed during the course of motion? Options: to speed up motion, to slow down motion, to keep motion at the same speed, to keep motion in the same direction

Back

to slow down motion

Front

A student uses the same force to push a golf ball, a ping pong ball, a bowling ball, and a baseball. Which will move the fastest?

Back

The ping pong ball

Tags

NGSS.MS-PS2-2

Front

A plane carrying bags has a mass of 50,000 kg. After delivering the bags, it has a mass of 30,000 kg. How would the plane’s motion be affected on the way back?

Back

The plane would travel at a faster speed.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Front

Which forces will Martin work against MOST when he pushes a box up a ramp?

Back

friction and gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

Why does the tower remain standing with blocks missing?

Back

balanced forces

Tags

NGSS.MS-PS2-5

Front

The graphs show two delivery trucks traveling on the same highway.

Which best describes the speed of the two trucks?

• Truck A is slowing down, and Truck B is speeding up.
• Truck A is speeding up, and Truck B is not changing speed.
• Truck A is not changing speed, and Truck B is slowing down.

Back

Truck A is speeding up, and Truck B is not changing speed.

Tags

NGSS.MS-PS3-1

Front

A group of students hiked at a rate of 4 kilometers per hour through the park. The journey took 4 hours. How far did the group travel? (distance = speed × time)

Back

16 km