If an object is moving at a constant speed in the same direction, is it accelerating?
no
Oops!
Check
Okay!
Check
15
A plane is flying at 200 m/s. 30 seconds later, it is flying at 235 m/s. What is the acceleration of the plane? (round to the nearest hundredth)
1.17 m/s2
Oops!
Check
Okay!
Check
trap
No points!
Oops!
magnet
Take 25 points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 20 points!
Oops!
15
Mrs. Wimmer runs at a speed of 88 feet per second for 30 seconds. Mr. Christman runs at a speed of 89 feet per second for 28 seconds. Who runs the farthest distance?
Mrs. Wimmer. She will run 2,640 feet while Mr. Christman will only run 2,492 feet.
Oops!
Check
Okay!
Check
15
A woman runs 26.2 miles in 4 hours. What is her average speed in miles per hour?
6.55 miles per hour
Oops!
Check
Okay!
Check
15
If an object increases its speed, is it accelerating?
yes
Oops!
Check
Okay!
Check
15
A motorcycle increases its speed from 8 m/s to 30 m/s in 9 seconds. What is the acceleration of the motorcycle? (Please round to the nearest hundredth)
2.44 m/s2
Oops!
Check
Okay!
Check
15
Is acceleration a vector quantity or a scalar quantity?
Vector quantity, because it has magnitude and direction.
Oops!
Check
Okay!
Check
15
A car drives in a circle at a constant speed, is this car accelerating?
Yes, because it is changing its direction.
Oops!
Check
Okay!
Check
15
What is the change in velocity over time called?
acceleration
Oops!
Check
Okay!
Check
15
what is the formula for acceleration?
(final velocity - initial velocity) / time
Oops!
Check
Okay!
Check
15
What is the acceleration of a baseball when its speed increases from 1 m/s to 25 m/s in 1 second?
24 m/s2
Oops!
Check
Okay!
Check
lifesaver
Give 15 points!
Oops!
seesaw
Swap points!
Okay!
gift
Win 20 points!
Okay!
thief
Give points!
5
10
15
20
25
monster
Reset all scores!
Oops!
gold
Win 50 points!
Okay!
shark
Other team loses 25 points!
Okay!
banana
Go to last place!
Oops!
15
A walker travels at a speed of 3 miles per hour. If they walked for 24 hours straight, how much distance would they cover (in miles)?
72 miles
Oops!
Check
Okay!
Check
15
A car is driving at 60 m/s. After 7 seconds, it is traveling at 45 m/s. What is the acceleration of the car? (round to the nearest hundredth)