Work Force and Motion

The distance an object travels in a certain period of time is called —

• speed

• acceleration

• velocity

• deceleration

The final velocity minus the initial velocity divided by time is the formula for —

• average speed

• ending velocity

• acceleration

• constant speed

Timothy runs 3.92m in 14s. What is his speed? S = D/T

• 714 m/s

• 0.28 m/s

• 3.6 m/s

• 36 m/s

A student drove at a constant speed for 4 hours and traveled 220 miles. What is the total distance the student will have traveled after 6 hours at the same constant

speed?

• 880 miles

• 330 miles

• 1,000 miles

• 440 miles

A student completed a 20 mile walk in 2.5 hours. How fast did the student walk?

• 2.5 mph

• 8 mph

• 0.25 mph

• 4 mph

A student rode in a car for 3 hours and traveled 120 miles. What was the driver's average speed?

• 45 mph

• 40 mph

• 35.5 mph

• 55 mph

What is the velocity of a dancer moving 8 meters towards the left side of the stage over the course of 20 seconds?

• 3.4 m/s

• 0.4 m/s

• 0.35 m/s

• 140 m/s

The speed and direction of motion is—

• deceleration

• momentum

• velocity

• acceleration

"An object at rest tends to remain at rest unless acted upon by an outside force."

Which of Newton's laws of motion is defined?

• 1st

• 3rd

• 4th

• 2nd

A girl kicks a soccer ball into the air. Which of these best explains why the soccer ball

falls back to Earth?

• The acceleration of the ball is unstable.

• The motion of the ball is changed by external forces.

• The force exerted on the ball is greater than gravity.

• The pressure on the ball changes with altitude.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4