Ch4.2
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Lesson duration is: 10 minItems in this lesson
Slide 1 - Slide
The symbol for the unit of force is
A
m/s2
B
m/s
C
W
D
N
Slide 2 - Quiz
A force of 0 N ...
A
always causes a change in motion
B
sometimes causes a change in motion
C
makes a moving object stop
D
never causes a change in motion
Slide 3 - Quiz
Which force causes an acceleration of 4 m/s on a mass of 8 kg?
2
A
2 N
B
2 N/kg
C
32 N
D
32 N/kg
Slide 4 - Quiz
The force of gravity on an obese mouse of 30 kg is about
A
300 N
B
30 N
C
3 N
D
can't calculate; need more information
Slide 5 - Quiz
A car moving with a constant speed means
A
The force of the engine is 0 N
B
The sum of all forces on the car is 0 N
C
The resultant force on the car is 0 N
D
There is no force working on the car
Slide 6 - Quiz
A resultant force of 40 N is exerted on a baby elephant of 400 kg. What will be its acceleration?
A
10 m/s2
B
1 m/s2
C
0.1 m/s2
D
0.01 m/s2
