To measure speed, we must find the time and the _______________________?

• speed

• direction

• distance

• velocity

Which list shows what can happen to the motion of a moving object when a force is applied to the object?

• the object speeds up, slows down, or sits at rest

• the object changes directions, speeds up, or slows down

• the object moves at a constant speed, speeds up, or slows down

• the object moves at a constant speed, changes direction, or speeds up

Tags

NGSS.MS-PS2-2

What is a force that acts between two touching objects and that opposes motion?

• force

• gravity

• friction

• unbalanced forces

What is a push or a pull, which may cause a change in an object's motion?

• force

• gravity

• friction

• unbalanced forces

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is a force of attraction between objects, such as the attraction between Earth and the objects on it?

• force

• gravity

• friction

• unbalanced forces

Tags

NGSS.MS-PS2-4

Forces that cancel each other out because they are equal in size and opposite in direction are known as?

• force

• gravity

• balanced forces

• unbalanced forces

Forces that cause change in an objects motion because they do not cancel each other out are called?

• force

• gravity

• balanced forces

• unbalanced forces

Tags

NGSS.MS-PS2-2

Which of the following objects will have the greatest change in motion?

• a small force is applied to an object with a large mass

• a small force is applied to an object with a small mass

• a large force is applied to an object with a large mass

• a large force is applied to an object with a small mass

Tags

NGSS.MS-PS2-2

Fred pushes a cart with three books so it just reaches the end of a track. He puts six books onto the cart. What must he use next time so the cart reaches the end of the track?

• less force

• more force

• the same force

• a different cart

Tags

NGSS.MS-PS2-2