The time it takes for something to move from one place to another is its ______________.
speed
100
_________ is the location of an object.
Position
100
Which of these do you measure in meters?
A. friction
B. gravity
C. distance
D. speed
C. distance
100
A magnetic force can attract which of the following?
A. wood
B. iron
C. glass
D. rubber
B. iron
100
When you measure how high or low a sound it, you measure the sound's __________.
pitch
200
An object moves when ________________ is applied.
force
200
________ is the force that pulls us toward Earth.
Gravity
200
List some words that can be used to describe an object's position.
over, under, left, right, on top of, beneath, next to, etc.
200
The measure of how much gravity is pulling an object toward Earth is its _______.
weight
200
What do you need to do to make a sound?
make an object vibrate
300
_____________ is any change in position of an object.
Motion
300
A piano makes sound when it _____________.
vibrates
300
What are 4 types of motion?
straight line, round and round, zigzag, & back and forth
300
Which of the following is an example of friction?
A. water that changes into ice
B. using batteries to power a toy
C. using the brakes on a bicycle
D. an apple falling from a tree
C. using the brakes on a bicycle
300
Objects that vibrate quickly make sounds with
A. high volume
B. low volume
C. high pitch
D. low pitch
C. high pitch
400
_______________ is the space between two objects.
Distance
400
Magnets can either ________ or attract each other.
repel
400
How can you tell if an object has moved?
Compare its position at different times to the position of nearby objects that have not moved.
400
Which is an example of a contact force?
A. gravity pulling on a leaf
B. a magnet attracting a paper clip
C. two magnets repelling each other
D. a bat hitting a ball
D. a bat hitting a ball
400
What is the difference between pitch and volume?
Pitch is how high or low a sound is. Volume is how loud or soft a sound is.
500
The force that occurs when you push down on the floor with your foot is a ______________.
contact force
500
The force that occurs when one object rubs against another is ___________.
friction
500
Suppose you rode a bike at 10 kilometers per hour for 3 hours. How far would you travel?
30 kilometers
500
How can friction help keep you safe?
* bicycle brakes keep you from going too fast
* walking without slipping because of friction between your feet and the ground
500
How does a sound wave travel through your ear?
(HINT: 5 steps)
1. Outer ear collects sound
2. Ear drum vibrates
3. Three bones in inner ear vibrate
4. Vibrations pass from inner ear to nerves
5. Nerves send message to your brain