# Energy and Gravity

## Quiz by Leanne Phillips

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42 questions
• Q1
A force is a _______________ or a _________________.
pull, swipe
push, shove
push, pull
run, walk
300s
• Q2
The amount of matter in an object is called its ____________.
mass
inertia
weight
momentum
300s
• Q3
The force that pulls objects toward the center of the Earth
gravity
air resistance
friction
force
300s
• Q4
Determine what force is acting on the object: A parachute falling to the ground:
Gravity
Air Resistance
Both Air Resistance and Gravity
300s
• Q5
Friction stops or slows down almost every motion on Earth.
False
True
300s
• Q6
What does your bathroom scale measure?
Mass
Weight
Friction
Momentum
300s
• Q7
A force that pulls objects toward one another
Friction
Energy
Orbit
Gravity
300s
• Q8
Kevin is sitting on a chair. Why doesn’t Kevin fall to the ground?
Gravity is pulling Kevin and the chair toward each other.
The chair is pushing Kevin up with a force equal to that of gravity pulling him down.
Gravity does not affect people while they are sitting.
The chair is pushing down with a force equal to that of gravity.
300s
• Q9
Tiffany throws a ball up into the air. Why does the ball come back down?
Tiffany is pulling the ball down.
Gravity is pushing the ball away from Tiffany.
Gravity is pulling the ball down.
Air is pushing the ball down.
300s
• Q10
How does a rocket overcome the force of gravity?
The rocket has engines that make it weigh less during launch.
he rocket has engines that pull it toward outer space.
Nothing can overcome the force of gravity.
The rocket has engines that push it away from the Earth.
300s
• Q11
_________________surfaces create more friction.
Smooth
Rough
300s
• Q12
Oil can reduce the amount of friction between objects.
True
False
300s
• Q13
Without friction, it would be very hard to slow or stop the motion of an object.
True
False
300s
• Q14
What makes an object start moving?
Force
Speed
Motion
Mass
300s
• Q15
When you push a shopping cart, you…
Change the mass of the cart
Change its motion
Do not change its position
Change your own mass
300s

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