Which object requires the least amount of force to move it 5m?

• golf ball

• soccer ball

• bowling ball

• table tennis ball

Tags

NGSS.3-PS2-1

On which object would the force of gravity be the strongest?

• an apple

• a book

• a basketball

• a truck

Tags

NGSS.MS-PS2-4

Which force pulls objects toward Earth?

• friction

• gravity

• pushing

• pulling

Tags

NGSS.5-PS2-1

A train goes around a corner at the same speed it was traveling on a straight track. What is this an example of?

• speed

• acceleration

• relative motion

• frame of reference

Which force slows a basketball as it rolls over a flat surface?

• gravity

• friction

• inertia

• an electrical force

Which object is accelerating?

• a ball rolling 10 miles per hour

• a car turning sharply around a corner

• an airplane flying at a speed of 520 miles per hour

• a vase at rest on a table

Tags

NGSS.MS-PS2-2

If two puppies pull on a plastic ring with equal forces. the ring does not move. This is an example of

• balanced forces

• unbalanced forces

• acceleration

• friction

Tags

NGSS.3-PS2-1

To describe an object's velocity you will need both

• speed and direction

• motion and direction

• position and direction

• frame of reference and direction

What acts on a moving skateboard to make it stop?

• gravity

• friction

• magnetism

• inertia

Tags

NGSS.MS-PS2-2

What force causes the baseball to change direction when it is hit by a bat?

• The catcher's force on the ball with his mitt.

• The batter's force on the ball as he misses.

• The pitcher's force on the ball as he throws.

• The batter's force on the ball with the bat.

Tags

NGSS.MS-PS2-1