Force and Motion

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force

Tags

NGSS.MS-PS2-2

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

What pulls a ball back to earth?

• Gas
• Gravity
• Friction
• Molecules

Tags

NGSS.MS-PS2-4

Four boxes of increasing size and weight must be pushed up a ramp. To push the boxes at the same speed, what must you do?

• Push the boxes with the same force, smoothly up the ramp.

• The larger and heavier the box, the more force you must use when pushing.

• Push the boxes with the same force, at exactly the same speed, up the ramp.

• Push the largest box with the most force; push the others with about the same force.

A car's position in relation to time is plotted on the graph. What can be said about the car during segment B?

• The car travels for 80 seconds during segment B.

• The car is traveling faster during segment B than in segment C.

• The car is traveling with a constant velocity due to the flat line of the graph.

• The car has come to a stop and has zero velocity.

What will happen if one students applies 6 Newtons of forces to one side of a box and another student applies 6 Newtons of force to the other side of the box.

• The box does not move

• The box moves to the right

• The box moves to the left

• The box is crushed

According to Newton's first law of motion, if a person is swinging a rock at the end of a string and the string breaks, the tendency of the rock is to ______________.

• stop abruptly

• fall to the ground

• follow a straight-line path

• continue to follow a circular path

Four bikers raced in a 1000-meter race. During the last 300 meters, each bicycle was moving with the same speed. Using the graph, determine which competitor was riding the lightest bicycle. (Assume each competitor had the same mass)

• A

• B

• C

• D

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

Tags

NGSS.MS-PS2-2

Which force produces a change in motion?

• unbalanced force
• balanced force
• gravitational force
• frictional force