Forces & Motion

A change in motion is produces by

• all forces

• balanced forces

• unbalance forces

• the absence of force

Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the ___ direction to that of the first object

• opposite

• same

• right angle

• vertical

As the distance between two objects increases, the gravitational attraction between the objects __

• decreases

• increases

• remains the same

• reverses

Newton's second law states that force is equal to the mass times the _____________

• weight

• distance

• speed

• acceleration

Two toy cars of different masses are released from the top of a ramp. The distance each car travels is measured. The procedure is repeated three times and the distances are averaged. What is the independent variable in this experiment?

• mass of the car

• height of the ramp

• distance traveled

• number of time the procedure is repeated

Two toy cars of different masses are released from the top of a ramp. The distance each car travels is measured. The procedure is repeated three times and the distances are averaged. What is the dependent variable in this experiment?

• mass of the car

• height of the ramp

• distance traveled

• number of time the procedure is repeated

To determine motion, a ____ must be determined

• reference point

• time

• force

• speed

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

Tags

NGSS.MS-PS2-2

What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

Tags

NGSS.HS-PS2-1

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

Tags

NGSS.MS-PS2-2