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WorksheetsGravity and Kinetic Energy
Total questions: 17
Worksheet time: 6mins
A car travels 400 km in 5 hours. What is the average speed?
60 km
80 km
60 km per hr
80 km per hr
The acceleration (increase in speed) of gravity is always 9.8 m/s^2 on Earth
True
False
What is acceleration?
Change in speed over a period of time
when you go faster
when you go slower
Change in time over a period of speed
1 kg is equal to about 10 Newtons
If an object has a mass of 4.5 kilograms, what is its approximate weight on Earth in Newtons?
450 newtons
54 newtons
.45 newtons
45 newtons
Which child has more potential energy? The one with the ball or the one holding on for dear life at the top?
The one with the ball
the one at the top
Who is a scientist?
someone that designs, builds or maintains engines, machines or public works.
someone who is studying or has expert knowledge of one or more of the natural or physical sciences.
someone who cuts things open.
someone who wears a lab coat and glasses.
Who is an engineer?
someone that designs, builds or maintains engines, machines or public works.
someone who is studying or has expert knowledge of one or more of the natural or physical sciences.
someone who cuts things open.
someone who wears a lab coat and glasses
Every object stays at rest unless an outside force acts on it. If an object is moving, it travels in a straight line at a constant speed unless an outside force acts on it.
True
False
The acceleration of an object is directly proportional to the force on the object. It is inversely proportional to its mass.
False
True
For every action or force, there is an equal and opposite reaction or force.
True
False
Less time to go the same distance will allow you to determine that an object moved the fastest.
Yes
No
I don't know
I'm pretty sure
Mrs. Asman and Mrs. D’Elia go sledding down a hill. Mrs. Asman is taller than Mrs. D’Elia, they both weigh the same and their sleds weigh the same. If they are sledding at the same speed, who has more kinetic energy?
Mrs. Asman
Mrs. D'Elia
they have the same amount
There is no kinetic energy in sledding
An astronaut weighs about 80 kg on Earth. When he goes to Mars which has a gravitational force of .3 g will he weigh more or less than on Earth?
More
Less
He will weigh the same
he can't go to Mars
Which line shows the fastest car
a
c
b
d
Does an object held at the same height have the same potential energy on Earth and the moon? Why?
No, there is less gravity on the moon
Yes, there is nothing different
Yes, the height is the same
No, the moon has craters
How do you find the joules of an object?
Find the force of the object and divide by the velocity
Half the object's mass and then multiply by the velocity squared
multiply the mass of the object and the velocity squared
What's a joule?
You must know the mass and speed to figure out which object has the most kinetic energy.
False
True
objects don't have kinetic energy
