ALPHA
When ice melts, it changes from …
solid to liquid
Which form of energy is possessed by a moving object?
Kinetic
An object is said to be at rest if it …
does not change its position
An object moves 50 m in 5 s. Its speed is
10
The SI unit of speed is …
meter per second
A car travels 120 meters in 10 seconds.
Calculate its speed.
12
Which instrument is used to measure force?
Spring balance
A car accelerates uniformly from rest to 20 m/s in 10 seconds.
What is the acceleration of the car?
2
Two resistors are connected in series. If one resistor is removed, the total resistance will …
decrease