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WorksheetsPhysics Review Exam
Total questions: 20
Worksheet time: 40mins
Change in position is called:
Physics
Gravity
Motion
Speed is the rate of change of position over time, its formula is:
Speed = Distance/Time
Speed = Acceleration X Gravity
Speed = Mass/Volume
Acceleration is the rate of change of velocity over time, its formula is:
Acceleration = Change of Velocity/Time
Acceleration = Mass X Gravity
Acceleration = Mass/Volume
A horse travels 100 km in 4 hours.
What's its speed per hour?
25 km/h
50 km/h
75 km/h
A car travels 200 km in 4 hours.
What's its speed per hour?
25 km/h
50 km/h
75 km/h
A dolphin swam at 30 km/h for 3 hours.
What distance did it travel?
30 km
50 km
90 km
Whenever an object is tossed in freefall, its acceleration on planet Earth is:
9.8 m/s2
5 m/s
1.6 m/s2
Downward movement under the force of gravity only is called.
Vertical throw
Jumping
Freefall
If we compare the gravity of Earth and the gravity of the Moon, we find that:
They are equal.
Earth's force of gravity is less.
Moon's force of gravity is less.
If a feather and a bowling ball are dropped from the same height in vacuum (without air resistance), what happens?
The feather hits the ground first.
Both hit the ground at the same time.
The bowling ball hits the ground first.
A coin is dropped (on the planet Earth). After 4.5 seconds what's its velocity?
Remember that:
*Earth's gravity acceleration: 9.8 m/s2
*Velocity in Freefall = (Gravity)(Time)
44.1 m/s
9.8 m/s
5 m/s
What does acceleration measure?
Change in Mass
Change of only Distance
Change in Velocity
Which of the following is NOT accelerating?
Either positivelly or negativelly.
A car moving faster.
A person reducing his/her speed.
An object that is not moving.
A cyclist accelerates from 0 m/s to 8m/s in 3 seconds.
What's the cyclist acceleration?
3 m/s
8 m/s2
2.667 m/s2
It is a combination of forces acting upon the same object.
Distance
System of Forces
Mass
It is the result of the addition (or substraction) of all the forces acting upon the same object.
Resultant Force
Distance
Gravity
What is the resultant force?
20 Newtons Right (+)
30 Newtons Left (-)
0 Newtons (Forces are in Equilibrium)
What is the resultant force?
12 Newtons Right (+)
12 Newtons Left (-)
0 Newtons (Forces are in Equilibrium)
After applying these forces, will this object move towards the Left or Right?
Right
Left
After applying these forces, what will happen?
Air friction will make the box float.
Force of Gravity will set the box in Free Fall.
