Forces and Motion - Formative

Which type of force resists motion?

• Friction

• Gravity

• Pull

• Push

Tags

NGSS.3-PS2-1

What force attracts some metals and it is a non-contact force?

• Push

• Pull

• Magnetism

• Friction

When forces on an object are balanced, sum of all the forces on the object is ...

• Five

• Ten

• Six

• Zero

A student is pushing a book with a force of 10 Newtons to the left. Another student is pushing the book to the right. How many Newtons of force is the second student pushing with if the book is not moving?

• 10 Newtons

• 5 Newtons

• 0 Newtons

• 1 Newton

Tags

NGSS.3-PS2-1

What is the resultant force on the box in the image ?

• 400 N Up

• 400 N Down

• - 400 N Down

• 800 N Down

Which statement best describes the motion of the box in the image ? (Assume these are the only forces acting on it)

• It is accelerating to the right.

• It may be moving at a constant speed in any directions.

• It is decelerating to the right

• It may be stationary or moving at a constant speed to the left or right.

Total distance divided by total time of a journey will give us _________________________ for the journey .

• average speed

• constant speed

• instantaneous speed

• acceleration

This motion graph of an object shows that the object is

• moving at a constant Speed

• accelerating

• stationary

• decelerating

This motion graph of an object shows that the object is

• moving at a constant speed

• accelerating

• stationary

• decelerating

Best description of motion represented by the line D is ...

• The object is stationary

• The object is accelerating

• The object is moving at a fast constant speed compared to others in the graph; away from the starting position

• The object is moving at a slow constant speed compared to others in the graph; away from the starting position