Forces and Motion Review

A student claims that unbalanced forces acting on an object in motion can cause all of the following results: • The object could stop moving • The object could speed up • The object could change directions The best evaluation of this student’s claims is that -

• none of the claims is true.
• one of the claims is true.
• two of the claims are true.
• all of the claims are true.

Tags

NGSS.MS-PS2-2

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two horses pull in opposite directions, but together move in the direction shown. Which of the following best describes the forces being applied in this situation?

• The forces are balanced, and the net force is zero
• The forces are unbalanced, and the force of Horse 1 is greater
• The forces are unbalanced, and the force of Horse 2 is greater
• The forces are balanced, and the force of Horse 1 is greater

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 is the net force on the block? (click on the words to view the picture)

• 5 Newtons up
• 5 Newtons down
• 15 Newtons up
• 15 Newtons down

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

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

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If you pull the cord, what direction will the box move?

• Up
• Down
• Left
• Right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A box and forces are shown below. A box rests motionless on the ground. One student is pushing the box to the right with a force of 2 Newtons. The other student is pushing to the left with a force of 5 Newtons. In which direction and with what type of speed will the box move?

• It will move left at a constant speed
• It will move right at a constant speed
• It will move left at an increasing speed
• It will move right at an increasing speed

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following objects has the least acceleration?

• a. an empty shopping cart pushed with a hard force
• b. a full shopping cart pushed with a hard force
• c. an empty shopping cart pushed with a light force
• d. a full shopping cart pushed with a light force

Tags

NGSS.MS-PS2-2